Tool Ergonomic Guide PDF

Ergonomic Work equipment and tools Dr.sc.ing. Anita Gerina-Ancane All things that we use by hand are tools!!! Even it could be your pencil or ruler!!! How many components a tool has? Which part or parts belongs to ergonomic field?  Requirements for design tools Tool...

Ergonomic Work equipment and tools Dr.sc.ing. Anita Gerina-Ancane All things that we use by hand are tools!!! Even it could be your pencil or ruler!!! How many components a tool has? Which part or parts belongs to ergonomic field?  Requirements for design tools Tool consist of "head", which are intended to be carried out and the handle, which is in direct contact with the people, and so from an ergonomic point of view, interested directly handle  Work tools and equipment is the first thing a man has invented to save his energy, and that human needs are determined by their form and function Hand pressure point diagram  Tool design must comply with the function for which it is meant as well as anthropometry (the science that studies the human dimension) and biomechanics (the science that studies the movement) principles  While it is impossible to produce tools for each person, but can not, for example, based on the average size hands, but guided by the needs of the majority of the population and the size of the hand The basic requirements to be met from the point of view of ergonomic everyone's tool Effectively perform the functions for which it is intended Tool must be so designed, to be reduced to a minimum the fatigue, acting with it; movements tool, which must be carried out with the hand and arm movements made in a way to avoid excessive load  Hand tools must be designed in such a way that the wrist during work, stay straight  It must be designed for human labor power and force applied, taking into account the physical structure, gender, level of training, etc. They should be appropriate worker's body size Working with them, account must be taken of the working clothes and personal protective equipment, which is used for the particular operation, such as gloves, protective sleeve, etc., as well as material from which they are made, and their thickness  They must ensure that the appropriate force pressure (the hammer) and precision (nail-puller) If possible, they should be adapted to both right-handed and left-handed needs They should ensure "feed-back" effect for the people who use them, such as the hand is used to feel the object activity, structure, pressure, temperature, etc.  Incorrect designed handle not reduce the effectiveness of the tool, but it may cause discomfort such as blisters, watery blisters, joint deformation, etc., or even hand pathology  The handle must comply with natural palm grip, and its construction should avoid strong ribbing, especially if the tool requires the use of a use of force if it is used again The length and curvature of the handle must be such as to avoid injuries, the handles should not be too long, to unlimited the normal movement of your finger Handle length from 130 to 150 mm, and it depends from force moment l x F As the handle diameter is recommended from 25 to 40 mm if necessary to do some work, but the diameter should not be less than 6 mm, when it comes to working out of a precise  Power transmission and comfort grip handle is larger, where a straight line between the hands and tools, to achieve this, the angle between the axis of the arm length and the handle should be 100 - 110 °  Should also be considered the material from which is made the tool, as well as whether an employee has to wear any personal protective equipment If a tool meant for use without gloves, it must be of a material which is a poor conductor of electricity and heat, the surface must be sufficiently rough to provide a good grip it, but not porous to prevent the accumulation of particles and dust  Tool handles, developed arthritis and back pain as well as reduces the risk of repetitive strain emergence Handle Ergonomic design adapted to any height, short or tall, right-handed or left-handed. Different spade handles. Which are the best for humans? Different types and different materials  Ergonomic Pruners For greater comfort and efficiency while addressing the challenges that require more power, choose tools with a maximum wrist «open» 3 ½ inches (8,89cm). Because the instrument has taken more time task, as Mechanism 'handle should be longer Trowel Pro-XR Ergonomic Baseball Bat See a video. Think!!! What are garden saw’s advantages and disadvantages? Advantages Disatvantages http://www.youtube.com/watch?v=kolJg-cMvfA  Video materials Get a Grip: Three Things to Know about "Ergonomic" Handles https://www.youtube.com/watch?v=P0ljvzSOnd8 New spade ergonomc handle https://www.youtube.com/watch?v=KsGRVJoVkyc Ergonomic Vertical Mouse, hand in its natural position  https://www.youtube.com/watch?v=vt0IyB4OaeE The mouse size main measure The standard size of computer mouse Wired Extra Small Medium Large version Small Choose up to 155 155 - 175 175 - 195 195 - 215 size: mm mm mm mm Ergonomic two-button optical USB mouse  https://www.youtube.com/watch?v=m6j8SFJs4lA The correct position of hands and wrists  Apple mouse How about ergonomic?  Palm of the hand should not be bent or tilted his hand on the top or side  More information about tool handles What are the major ergonomic concerns of a hand tool design? https://www.ccohs.ca/oshanswers/ergonomics/handtools/tooldesign.html