Chapter 4 Considerations For Ergonomic Layout; Working Height; Ergonomic Guidelines - THORLABS Corner User Manual

Chapter 4 Considerations For Ergonomic Layout

The ScienceDesk and its accessories have been designed to provide maximum adaptability, thereby ensuring the
most ergonomically favorable work environment for the operator. When setting up the final layout of the
workstation, consideration should be given to the position of the operator, the positioning of the various pieces
of equipment in relation to the operator, and the duration of use for each unit.

4.1 Working Height

When correctly positioned on its legs, the frame is 765mm above the ground.
When 'at rest' on its isolators, the bottom of the table top/ breadboard sits 35mm below the edge of the frame.
When floated on its isolators, the bottom of the table top/ breadboard sits 12mm above the 'at rest' positon.
For example, a system fitted with a standard 60mm breadboard, when correctly floated on its isolators, would have a working
height of:
765 + (60 – 35) + 12 = 802mm.
Similarly, the working height for a 110mm breadboard would be:
765 + (110 – 35) + 12 = 852mm.

4.2 Ergonomic Guidelines

The following information from ISO 6385 is provided as a guide.
The work area should be adapted to the operator:
• Height of work area should be adapted to body dimensions and work performed.
• Seating arrangements should be adjusted to the individual.
• Sufficient space should be provided for body movements.
• Controls should be within reach. (preferably within the working area defined – see Fig. 4.1)
The work should be adapted to the operator:
• Unnecessary strain should be avoided.
• Strength requirements should be within reasonable limits.
• Body movements should follow natural rhythms.
• Posture, strength and movement should be harmonised.
Particular attention should be paid to:
• Where possible, alternate between sitting and standing postures (if only one position is available, sitting is preferable to
standing).
• Keep the chain of force vectors through the body short and simple.
• Allow suitable body posture and provide appropriate support.
• Provide auxiliary energy if strength demands are excessive.
• Avoid immobility.
• Use preferred motions. Repetitive twisting should be avoided, especially when seated.
The user should be supplied with a chair providing good body support, and adjustable height and posture. An inclined foot
support is recommended, where necessary, to aid user comfort. This should be adequately adjustable in height and inclination
to provide good support for the feet and legs.
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