Seat Styling - Bezel Definition - Mech_Ergo

8/12/2019 Seat Styling - Bezel Definition - Mech_Ergo

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Prepared by:

Development Group

October 2007

Bezel Definition, Mechanical and Ergonomic Concepts

Seat Styling Project



2Prepared B y:

Development Group at BICCM

Content

Introduction

Muscle groups

• Small M.G

• Large M.G• Range of Movement

Zone of comfort

Movement to operate

• Pivot point

• Translation

• Classic lever

• Car handle

• Multi functions

• Ideations

Next steps

Questions



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Introduction

New bezel design is considering the application from an

ergonomic perspective. Ergonomic principals and

mechanical requirements are key aspects in the concept

development stage.

• Analysis of bezel usage

• Human factor

• Mechanical advantages

• New direction based on ergonomics


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Finger type operation

Muscle groups

Small Muscle groups

Small muscle groups:

•Specialized muscles that are responsible for

fine movements;

•Smaller-sized muscles used for detailed

operations that do not require high strength;

•High-strength tasks can cause strain – risk

of injury;

•Sensible and fragile.



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Muscle groups

Large Muscle groups

Deltoid

Triceps

Large muscle groups:•Large muscles that are responsible for greater

movements;

•Required for high strength operations;

•Natural way of applying heavy loads;

•Low risks of injury in range of forces considered

for this task.

Forearm

Biceps

Arm operation



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Muscle groupsRange of Movement

Wrist operation

Range of movement:

•Main focus: wrist joint

•Limited range of movement without increased

strain and discomfort on the joint;

•Limited amount of strength;•Common injuries to this area: carpal tunnel

syndrome.



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Zone of comfort

When seated, this is the mostnatural and comfortable location

for operation controls.



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Movement to operatePivot point

Rotation point

Direction of

movement

Switches on top, legrest

and lumbar

Switches

bellowlever

Backrest button for

easy manipulation

when in berthing

position

Lever

Direction of

movement



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Movement to operate

Translation

Translation

movement

Switches

top mounted

Switches

front mounted

Powered

assist lever



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Movement to operate

Classic lever

Lift

to operate

Side mounted switches

for a thumb reach

Leather wrapedswitches

One piece bezel

Piping



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Movement to operate

Car handle

Outboard seat mounted

and outboard opening

Side view including

legrest and lumbar buttons



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Movement to operate

Multi functions

Legrest

Backrest

Tracking = both

upward



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Ideations

Flush face

Side

buttons

Up-down

movement



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Next steps



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Seat Styling - Bezel Definition - Mech_Ergo

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