Intro to Fastener Ergonomics 130
This class introduces ergonomics and discusses the ergonomic concerns associated with assembly.
Number of Lessons 15
- What Is Ergonomics?
- The Importance of Good Posture
- The Importance of Workstation Design
- Sitting Workstations
- Standing Workstations
- Tool Balancers and Tool Positioners
- Torque Reaction
- Power Tool Ergonomics
- Screwdriver Ergonomics
- Impact Wrench and Pulse Tool Ergonomics
- The Disadvantages of Ergonomics
- Define ergonomics.
- Explain the importance of good posture.
- Describe ergonomic practices to avoid the negative effects of repetition.
- Describe ergonomic practices to avoid the negative effects of excess force.
- Explain the importance of workstation design.
- Describe ergonomic practices to avoid the negative effects of sitting workstations.
- Describe ergonomic practices to avoid the negative effects of standing workstations.
- Distinguish between tool balancers and tool positioners.
- Describe the characteristics of torque reaction.
- Describe ergonomic practices to avoid the negative effects of using power tools.
- Describe ergonomic practices to avoid the negative effects of using screwdrivers.
- Describe ergonomic practices to avoid the negative effects of using impact wrenches and pulse tools.
- Describe the disadvantages of ergonomics.
A coupling found inside a motorized device that engages or disengages parts to drive the mechanism.
The study of designing devices to decrease operator discomfort or fatigue and increase productivity.
The push or pull that gives energy to an object. Assemblers exerting excessive force is an ergonomic concern.
A small powered industrial vehicle that has two prongs on the front for lifting material. Forklifts are used to transport heavy loads.
The way in which an object, such as a screwdriving tool, is grasped. Tools are designed with different grips to accommodate specific tasks.
A joint in which less than a 30° turn will take the fastener from fitting snugly to reaching torque.
A screwdriving tool that uses a discontinuous drive clutch and compressed air to achieve torque. Impact wrenches are often used to tighten lug nuts on cars when changing a tire.
A small vehicle used in manufacturing that contains a platform for lifting and transporting heavy loads.
A device used to hold parts or supplies. Parts bins are usually on wheels so they can be easily transported around a shop.
personal protection equipment
Any of various articles of clothing or safeguarding devices that assemblers or operators are required to wear. Personal protection equipment (PPE) varies from shop to shop.
A tool that has a grip shaped to fit the hand. Pistol-grip tools are typically recommended for vertical projects.
The power the tool generates divided by the weight of the tool.
A screwdriving tool that uses a discontinuous drive clutch and hydraulics to generate torque. Pulse tools are common for applications that use large bolts.
A screwdriving tool that is powered when it is pushed against a joint.
A tool that assembles a screw into a joint. Screwdriving tools can be manual or powered by compressed air, electricity, or batteries.
A workplace in which assemblers perform their tasks sitting down.
A workplace in which assemblers perform their tasks standing up.
A tool that has a barrel-like grip. Straight-grip tools are typically recommended for horizontal projects.
A device that suspends a tool above the workstation using a retractable cord. Tool balancers are ergonomic and reduce clutter.
A device that suspends a tool just above the components using an adjustable bar or rod.
The amount of force applied to tighten a threaded fastener.
The jerk an assembler can feel in the hand and/or arm when a fastening tool reaches torque. Torque reaction is an ergonomic concern.
An attachment used with a fastening tool that absorbs torque reaction so the assembler can avoid injury.