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HAND-ARM
VIBRATION SYNDROME |
Performance of the
ErgoAir® AntiVib® Air Bladder
in an Antibration Glove
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| Performance of the AntiVib® Air Bladder |
ErgoAir®,
Inc. has developed the patented AntiVib®
air bladder technology that, when used in a glove, meets:
- the NIOSH requirements for an antivibration glove,
- the requirements of ISO 10819/ANSI S3.40 for classification as an antivibration glove, and
- the ergonomic requirements for an antivibration glove.
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Figure 1 - AntiVib® Air Bladder on Outside of Glove
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| ErgoAir®, Inc. and Impacto Protective Products, Inc. have collaborated to
include the AntiVib air bladder technology
in the ErgoAir® AntiVib®
glove and the ImpactoTM Air GloveTM.
Figure 1 shows a picture of the AntiVib® air
bladder placed on the outside of a glove. The air bladder is placed inside of a pocket
between the outside shell of the glove and the hand. |
Table
1 - ISO Weighted and Linear Vibration Transmissibility Values
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| Table 1 shows the ISO weighted and linear vibration
transmissibility values of gloves with the
AntiVib®
air bladder, as well as, the values of several other gloves that contain vibration-damping
materials commonly used to reduce vibration. The linear weighted values indicate a glove
with the AntiVib® air bladder attenuates 40%
of the mid frequency and 70% of the high frequency vibration energy into the hand. Figure
2 shows the vibration transmissibility values of the gloves in Table 1 as a function of
third octave center frequencies. The AntiVib®
air bladder attenuates 40% of the vibration energy from 40-315 Hz and from 40% to 95% of
the vibration energy from 315-1,600 Hz. Table 1 and Figure 1 indicate that the AntiVib® air blader out performs all of the other
glove vibration-damping materias listed in Table 1. Furthermore, a glove with the AntiVib® air bladder is the only antivibration glove in the
world that has met the requirements of ISO Standard 10819 at all three laboratories listed
in Table 2. |
Figure 1 - Third Octave Vibration Transmissibility Values
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Table 2 - ISO Weighted Transmissibility Values of the Air Glove with the
AntiVib Air bladder
CMEST: Center for Mechanical & Environmental
Systems Technology, University of Nevada, Las Vegas, U.S.A.
Delta: Delta Acoustics & Vibration, Lyngby, Denmark
BIA: Berufsgenossenschaftliches Institut fur
Arbeitssicherheit, Sankt Augustin, Germany
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| Feel and Flexibility of the AntiVib Air Bladder |
| Gloves with the AntiVib® air bladder
meet all of the NIOSH, ISO, and ergonomic requirements for a properly designed
antivibration glove. They are comfortable to wear. They do not have the
problems associated with gloves that are made with the other vibration-damping materials
listed in Table 1. Gloves made with these materials require a thick layer of the material
in the palm and fingers to produce an acceptable vibration reduction to the hands. These
materials tend to make a glove stiff and/or bulky, resulting in increased muscle fatigue
and intracompartment pressure in the carpal tunnel. These increase worker fatigue and
decrease tactile feedback. When the vibration-damping material in a glove is too thick,
the risk of developing carpal tunnel syndrome with prolong use is increased. Gloves with
the AntiVib® air bladder address all of these
issues. The AntiVib® air bladder is thin,
pliable and flexible. It naturally conforms to the flex-lines in the palm and fingers. As
a result, a worker can easily maintain control of his tool or work piece. Tactile feedback
is received through the air bladder while it provides good vibration protection. Thus, a
worker can always feel what he is doing. |
| AntiVib® and ErgoAir® are the registered trademarks of ErgoAir, Inc.; GelfomTM is the regerstered trademark of Decade, Inc.,
ViscolasTM is the registered trademark of Viscolas, Inc.; AktonTM is the registered trademark of Action, Inc.;
SorbothaneTM is the registered trademark of Sorbothane, Inc.; Air GloveTM and ImpactoTM are the registered trademarks of Impacto Protective Products, Inc. |
ErgoAir®, Inc. Hand-arm Vibration Technical
Information
Copyright © 1998, ErgoAir®, Inc
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