Electrical and Computer Engineering Department, Ryerson University, Canada.
J Occup Health. 2012;54(3):250-3. doi: 10.1539/joh.11-0176-br.
Operation of handheld power tools results in exposure to hand-arm vibrations, which over time lead to numerous health complications. The objective of this study was to evaluate protective equipment and working techniques for the reduction of vibration exposure.
Vibration transmissions were recorded during different work techniques: with one- and two-handed grip, while wearing protective gloves (standard, air and anti-vibration gloves) and while holding a foam-covered tool handle. The effect was examined by analyzing the reduction of transmitted vibrations at the wrist. The vibration transmission was recorded with a portable device using a triaxial accelerometer.
The results suggest large and significant reductions of vibration with appropriate safety equipment. Reductions of 85.6% were achieved when anti-vibration gloves were used.
Our results indicated that transmitted vibrations were affected by several factors and could be measured and significantly reduced.
使用手动动力工具会导致手臂振动暴露，随着时间的推移，这会导致许多健康并发症。本研究的目的是评估防护设备和工作技术，以减少振动暴露。
在不同的工作技术中记录振动传递：单手和双手握持，同时佩戴防护手套（标准、空气和防振手套）和握持带有泡沫覆盖的工具手柄。通过分析手腕处传递振动的减少来检查效果。使用三轴加速度计通过便携式设备记录振动传递。
结果表明，适当的安全设备可以大大降低振动。使用防振手套可降低 85.6%的振动。
我们的结果表明，传递的振动受到多种因素的影响，可以进行测量并显著降低。
