Ergonomics Jury

8/10/2019 Ergonomics Jury

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Proposed Workstation :-Sewing Room-Label Attachment


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Operation Involves

Taking cut material

Put it on sewing machine

Put the label

Running it through sewing machine


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Major Problems Involved

Restless arms

Restricted work area

Repetitive motions

Excessive bending


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Primary Considerations

Chair & Posture

Treadle and leg room

Correct height of table

Armrest

Visibility and tilt-adjustable table

Lighting and surroundings


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Chair and posture

Potential Hazards that can occur :-

Workers often maintain awkward shoulder, elbow, and wrist posture

while sewing because of improper chair height or position.

Employees must sit or stand for long periods in the same position,

resulting in soreness of the back and neck, and/or buttocks, and

reduced circulation to the legs.


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Chair and posture

Possible solutions:-

Chairs should have easily adjustable height, seat tilt, and backrestposition

Padded back rest with rounded edges that supports worker's lowerback

A cushioned or contoured seat

Chair should be placed at appropriate distance from theworkstation.

Provide training on importance of breaks to help reduce injuries.

Provide anti fatigue mats


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Treadle and leg room

Possible solutions :-

Design treadle to require less force, allowing the use of a sit/stan

workstation

When feasible, use hip switches or redesigned foot treadles t

eliminate the need to apply constant standing pressure

Provide adjustable treadle so the worker can place it in

comfortable position and get as close to the table as possible


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Table height

Potential hazards :-

Workers maintain awkward shoulder, elbow, and wrist postures whilsewing because of improper table height

Employees resting forearms or wrists on sharp edges may cut offblood circulation, pinch nerves, and cause injury to the arms orhands


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Table height


Provide both height- and tilt-adjustable tables

Tables should be adjusted so the work is at elbow height and wristsare kept straight

The table should also be high enough to allow room underneath fothe worker's legs

Tables may be tilted slightly toward workers

Edges of work surfaces should be padded or rounded, so workerscan rest their arms against them


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Armrest

Potential Hazard :-

Armrests that are not adjustable, or those that have not beenproperly adjusted, may expose you to awkward postures or fail toprovide adequate support.

If there is a uneven height of armrest it can result in :-

Uneven and awkward postures

Muscle Tension and Fatigue

Restricted movements


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Armrest


If it cant be adjusted remove it or dont use it

Position adjustable armrests so they support your lower arm andallow your upper arm to remain close to the torso

Armrests should be large enough to support most of your lower armbut small enough so they do not interfere with chair positioning

Armrests should be made of a soft material and have roundededges


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VISIBILITY & TILT-ADJUSTABLE

FEATURE OF TABLE


Viewing distance between the head and the needle for smapieces and fine work approx. 30 cm.

The head should be inclined forward at a max. 25

New sewing tables can be tilted to improve the visibility of work are

To obtain a slight tilt to the table, we can install a wedge betweethe table top and the base


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Lightning and surrounding

Potential hazards :-

Improper lighting can result in workers getting stressed.


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Lightning and surrounding


When setting up the sewing machine, the direction of view shoube parallel to the front of the window and the ceiling light strips.

The ambient lighting should provide sufficient brightness in the woarea (e. g. ceiling lighting, 500 lux).

Additional lighting or lighting on the workplace should be arrangein order to avoid high contrasts (differences in brightness).

It is recommended to have a minimum illumination of 1000 lux in thsewing area.


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Other considerations

Repetitive work reduction :-

Solution :-

Work should be organized such that operators get up fro

their workstation to pick up their next work order.

Repetitive strain can be reduced when operato

assemble large parts or full garments. This decreaserepetition and increases variability and skill. Set reasonab

limits for bundle sizes.


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Psychological Factors

Potential Hazards :-

If it is prolonged or particularly intense it can lead to physical effect(such as heart disease and gastrointestinal disturbances leading toulcers) and psychological effects (such as anxiety and depression)


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Psychological Factors


Provide regular training and up-gradation programs to operators.

Allocate tasks according to workers skills, training and experience.

Improve methods of doing work.

Introduce ways to relieve stress such as:

Play light music on the floor

Make cool drinking water available for workers.

Introduce motivation tools.


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THANK YOU!

Documents

Ergonomics Jury