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| ERGOAIR® ANTIVIB® GLOVE AIR BLADDERS |
| COMPARISON OF THE ERGOAIR® ANTIVIB® GLOVE AIR BLADDER WITH OTHER VIBRATION REDUCING MATERIALS |
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The
ErgoAir®
AntiVib®
glove air bladder was developed as a joint effort between
ErgoAir®
and Dielectrics Industries. ErgoAir®,
who is the leader in developing air bladder structures for protection
against human exposure to vibration and shock, developed the structure
and form of the glove air bladder. Dielectrics Industries, who is a
leader in precision RF welding
of thin-film thermoplastic urethane bladders and the leader in the
development and fabrication of integrated thin-film thermoplastic
urethane bladder inflation mechanisms, perfected the method and tooling
for fabricating the
AntiVib®
glove air bladder. The ErgoAir®
AntiVib®
glove air bladder
is protected by
patent nos. 5,144,708; 5,372,487; 5,537,688; 5,771,490; and 5,987,705. The ErgoAir®
AntiVib® glove air bladder is shown in Figure 1. The
bladder is made from two thin layers of flexible urethane thermoplastic
film that are bonded together by means of precision RF welding. The
inflated thickness of the bladder is controlled by the grid spacing of
the weld points in the palm, finger, and thumb sections of the bladder.
Properly placed weld lines give the bladder flexibility to easily
comfortably conform to the contour of the hand, as shown in Figure 2,
when it is placed in a glove. The bladder is inflated by means of an
integrated inflation mechanism. It can be deflated or its internal
pressure can be adjusted by means of the release valve. The
AntiVib® glove air bladder is
placed in a glove pocket between the palm, fingers, and thumb of the
hand and the outside shell of the glove. A thin layer of cotton or
similar material is placed between the bladder and the hand to prevent
the hand from sweating. The outside shell of the glove can be any type
of durable material. |
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Figure 1 |
 Figure 2 |
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A thin layer of compressed air placed between a
vibrating tool handle, work piece, or other object clasped by the hand
and the hand is the most efficient means of attenuating vibration and
shock energy directed into the hand. A glove with an ErgoAir®
AntiVib® glove air bladder that is
fully inflated meets the requirements of ISO 10819 and NAIS 10819 for
classification as an anti-vibration glove. Gloves with the
ErgoAir®
AntiVib® glove air bladder are
comfortable to wear. Tool operators who wear these gloves have good
finger dexterity and hand flexibility and control that enable them to
easily maintain control of their tools or work pieces. Good tactile
feedback is received through the glove air bladder while it provides
good vibration and shock protection. Tool operators who wear gloves with
the ErgoAir®
AntiVib® glove air bladder can
always feel what they are doing.
The
ErgoAir® AntiVib®
glove air bladder is tough and durable. It will outlast all
viscoelastic, polymer foam, and gel vibration-reducing materials. These
materials all tend to fail and turn to powder when exposed to the
prolong turning and twisting of the hand when used in most industrial
and commercial applications. |
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