Ergonomics in Industrial Design

Hiroshima Chair = Naoto Fukasawa / 2010 Air Chair = Jasper Morrison / 2000 Tip Ton = Barber Osgerby / 2011 Cafe Chair 233 = Michael Thonet / 1892

Hiroshima Chair = Maruni Tip Ton = Vitra Setu Chair = Herman Miller Tripp Trapp = Stokke

CESA Chair = Bauhaus-Knoll Cafe Chair 233 = Thonet Air Chair = Magis Tip Ton = Vitra

<p>Setu Chair = 2000 Cafe Chair 233 = 1892 Tripp Trapp = 1972 Hiroshima Chair = 2010</p> Signup and view all the answers

<p>Tip Ton = Reclining design Tripp Trapp = Adjustable seat height Setu Chair = Sustainable materials Air Chair = Lightweight construction</p> Signup and view all the answers

<p>Seat height = Knee joint height + sole + 43 cm Backrest width = Hip width sitting P95 Armrest height = Elbow height sitting P50 Lumbar support = 20 to 25 cm high</p> Signup and view all the answers

<p>Dynamic sitting = Constant change in posture Static position = Continuous strain on ligaments Stool functions = One fixed position is not ergonomic Adjustable chairs = Better distribution of possibilities</p> Signup and view all the answers

<p>Waterfall edge = Reduces pressure on thighs Breathable materials = Enhances airflow around body Cushioning material = Improves sitting comfort Lumbar support = Supports lower back</p> Signup and view all the answers

<p>Seat depth = Bil-knee hollow depth P5 - 5 cm Backrest inclination = 105 degrees Distance between armrests = Hip width sitting P95 + 5 cm Total seat width = Hip width sitting P95 + optional allowance</p> Signup and view all the answers

<p>Stackable = Saves space during storage Vandalism proof = Durable against damage Easy to clean = Enhances maintenance UV resistant = Withstands sun exposure</p> Signup and view all the answers

<p>Sitting dimensions = Measurements for ergonomic seating Postural support = Helps maintain correct body alignment Ergonomic design = Focuses on user comfort and efficiency Supportive cushioning = Enhances comfort and minimizes fatigue</p> Signup and view all the answers

<p>Lumbar support height = 20 to 25 cm from the seat Negative inclination = 0° to 5° Seat width recommendation = At least 45 cm for comfort Arm length specification = 20 cm for each armrest</p> Signup and view all the answers

<p>Weight = Ease of movement and transport Alignment = Ensures proper body posture Grip handles = Facilitates manipulation of the chair Environmental resilience = Resistance against UV and temperature changes</p> Signup and view all the answers

Sitting for extended periods in a single position puts stress on tendons and intervertebral discs. Frequent posture changes are vital for ergonomic seating.

The optimal height of a chair seat for general use is calculated as the height of the knee crease (P50) plus the thickness of the sole, typically around 43 cm.

The appropriate depth of a chair seat should accommodate leg length and be comfortable for the user. A typical depth is 40 cm.

The chair back should support the user's back and be adjusted to the correct height. A general height recommendation is 40-50 cm.

The chair's lumbar support should be positioned at a height of 20-25 cm to provide adequate lumbar support.

Ensure the chair incline allows comfortable sitting. A negative incline of 0° to 5° is generally recommended for optimal positioning.

The distance between the armrests should be at least 50 cm to provide adequate support and allow for arm movement.

The chair should be designed to be stackable for easy storage and transportation.

Ergonomics, when applied to seating design, focuses on creating comfortable and functional chairs that support proper posture and minimize physical strain. The goal is to improve user well-being and reduce the risks of discomfort, pain, and injuries associated with prolonged sitting.

The Hiroshima Chair, designed by Naoto Fukasawa in 2010 for Maruni, is a minimalist and timeless design that emphasizes simplicity and comfort. It features a thin, curved backrest that provides gentle support while maintaining a clean aesthetic.

The Air Chair, created by Jasper Morrison in 2000 for Magis, embodies lightness and flexibility. Its mesh structure and thin frame offer breathability while maintaining structural integrity.

The Tip Ton chair by Barber Osgerby, designed for Vitra in 2011, is known for its unique tilt. The design encourages movement and promotes dynamic sitting, which can benefit posture and improve circulation.

The Cafe Chair 233, developed by Michael Thonet for Thonet in 1892, is a classic and iconic design. Its bentwood construction allowed for mass production and ushered in the industrial era of chair design.