Introduction
Brief
The task is to design an adaptable accessory
for the Cengar that can reduce the risk of HAVS
(Hand-arm vibration syndrome) while ensuring
the full and safety of the tool.
for the Cengar that can reduce the risk of HAVS
(Hand-arm vibration syndrome) while ensuring
the full and safety of the tool.
Concept
Semi-sphere-shaped grommets absorb and dissipate
harmful vibrations, reducing the risk of HAVS.
The comfortable handle provides further vibration
reduction and precise control.
harmful vibrations, reducing the risk of HAVS.
The comfortable handle provides further vibration
reduction and precise control.
Research
HAVS stands for Hand-Arm Vibration Syndrome, which is a condition
that affects people who use vibrating hand-held machinery
or power tools for long periods of time. It is a type of occupational
disease that can cause damage to nerves, blood vessels, muscles,
and joints in the hands and arms. The symptoms of HAVS can
include numbness, tingling, pain, and reduced grip strength,
which can significantly affect a person's ability to perform manual
tasks. HAVS is a preventable condition, and measures such as
using anti-vibration gloves or accessories can help reduce the risk
of developing the syndrome.
that affects people who use vibrating hand-held machinery
or power tools for long periods of time. It is a type of occupational
disease that can cause damage to nerves, blood vessels, muscles,
and joints in the hands and arms. The symptoms of HAVS can
include numbness, tingling, pain, and reduced grip strength,
which can significantly affect a person's ability to perform manual
tasks. HAVS is a preventable condition, and measures such as
using anti-vibration gloves or accessories can help reduce the risk
of developing the syndrome.
The impact of Hand-Arm Vibration Syndrome (HAVS) on
the workplace can be significant. The United Kingdom experiences
an annual loss of an estimated 300,000 working
days due to HAVS-related absences. A survey conducted
by the Medical Research Council in 1997-98 revealed that
nearly 5 million individuals are exposed to hand-transmitted
vibration during a working week. The prevalence of
HAVS in the UK is approximately 288,000, with men being
more commonly affected than women at a ratio of approximately
8:1
the workplace can be significant. The United Kingdom experiences
an annual loss of an estimated 300,000 working
days due to HAVS-related absences. A survey conducted
by the Medical Research Council in 1997-98 revealed that
nearly 5 million individuals are exposed to hand-transmitted
vibration during a working week. The prevalence of
HAVS in the UK is approximately 288,000, with men being
more commonly affected than women at a ratio of approximately
8:1
Ergonomics and Anthropometrics
As ergonomic design is part of our brief, it is very important that it fits
properly in the hand of a user. Therefore taking ergonomics and anthropometrics
into account is very important
properly in the hand of a user. Therefore taking ergonomics and anthropometrics
into account is very important
Maximum Grip Diameter: 52mm- Male & 48mm- Female
Hand Breadth: 90mm Male & 79.4mm- Female
Elbow Wrist Length: 290mm Male & 262mm- Female
Ideation
The hemisphere’s curved surface serves as an effective
shock absorber by absorbing and dissipating
vibrations that would otherwise travel through a flat
surface.
Additionally, the hemispherical shape can distribute
an object’s weight more evenly, reducing the concentration
of weight and pressure points that can
create and amplify vibrations.
When statically loaded, simply placing a hemisphere
under the unit to be isolated with the curved surface
up can provide a 25-30% deflection.
shock absorber by absorbing and dissipating
vibrations that would otherwise travel through a flat
surface.
Additionally, the hemispherical shape can distribute
an object’s weight more evenly, reducing the concentration
of weight and pressure points that can
create and amplify vibrations.
When statically loaded, simply placing a hemisphere
under the unit to be isolated with the curved surface
up can provide a 25-30% deflection.
Prototyping
Final Look
