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Réduction des vibrations main-bras (RSS)
Prolonged use of electric grass trimmer exposes the user to the risk of hand-arm vibration syndrome. A simple approach for the suppression of hand-arm vibration in electric grass trimmer is presented. The proposed system is a tuned vibration absorber (TVA). The results indicated that minimum vibration level was related to the position of the TVA on the shaft of electric grass trimmer. The tuned vibration absorber when installed to the electric grass trimmer attenuated the vibration total value by 67%. This significantly reduces the risk of hand-arm vibration syndrome. Source : Tuned vibration absorber...
A full time tattoo artist posted a question on NIOSH Science Blog (#22): «i have been getting sever numbness and tingling in my finger it will last up to two to three days on times i am getting concerned about the effects the vibration of the tattoo machine may be causing». Amy Mobley and Renguang Dong of NIOSH answered: «The tattoo gun seems similar to some dental tools and it may generate high frequency vibration. At higher frequencies, the vibration-induced problems are mainly in the hand and fingers, such as finger tingling, numbness, pain, and white finger. » They said...
Protégez vos oreilles et vos mains Les outils portatifs pneumatiques génèrent des niveaux de bruit et de vibrations qui, avec les années, peuvent entraîner des effets néfastes sur la santé. La durée et l'intensité de l'exposition au bruit peuvent causer la surdité, tandis que la durée et l'intensité de l'exposition à des vibrations peuvent entraîner le syndrome de Raynaud (blanchiment des doigts) et des troubles musculo-squelettiques. L'IRSST a mesuré les niveaux de bruit et...
Previous studies of anti-vibration gloves have typically only considered the effect that a glove might have in the direction of compression of the glove material. This project investigates the performance of an anti-vibration glove taking account of the influence that the glove might have in three axes. This requires consideration of the performance of the glove material in both compression and shear. Since the adoption of the revised international standard ISO 5349-1:2001 in the UK as BS EN ISO 5349-1:2001 and the implementation of the Control of Vibration at Work Regulations 2005, the technique...
The Worker Involvement Activity forms part of the Noise and HAV programme. The aim of this activity was to reduce occupational ill health related to noise and HAV exposure by introducing worker participation projects. Twenty eight companies were recruited by HSE to set up worker involvement projects in July 2006. Four of these pilot projects were selected for this in depth feedback study which aimed to: gain views of worker involvement in the decision making process; gain feedback on the usefulness of the support materials; identify processes and difficulties involved in setting up the project;...