STUDIES ON HAND PROTECTORS FOR PORTABLE VIBRATING TOOLS
نویسندگان
چکیده
منابع مشابه
Operating hand-held vibrating tools and prevalence of white fingers.
Hand-transmitted vibration levels (HTVLs) and the prevalence of vibration-induced white finger (VWF) and numbness of the hands were investigated in eight groups of subjects operating various hand-held vibrating tools. The prevalence rates of Raynaud's phenomenon (RP) and numbness of the hands in 1,027 males and 1,301 females not occupationally exposed to vibration were compared to those of the ...
متن کاملVibration isolators for portable vibrating tools. Part 6. Problems concerning vibration force measurement.
Multi-point independent simultaneous force measurements were made to investigate the vibration force distribution on the palm and to determine one representative point on it for the purpose of field survey. The phase relationships between the force and the acceleration were also pursued. In connection with vibration force transmission, important effects such as vector, bypassing and mechanical ...
متن کاملThe Effect of Hand-held Vibrating Tools on Muscle Activity and Grip Strength
Many vibration-exposed workers have been found to suffer from muscle fatigue and decreased grip strength. Therefore in order to quantify and determine safe levels of human exposure to vibration, measurements and analysis of significance vibration factors are necessary. There are three main objectives in this study. The first one is to investigate the characteristics of vibration factors (vibrat...
متن کاملA study of portable vibrating tools in relation to the clinical effects which they produce.
During the recent war the clinical effects of the use of vibrating machinery have come even more to the fore than previously. This is because production methods, particularly in the aircraft industry, have required the increased use of portable grinding and riveting tools. Loriga (1911) first connected circulatory disturbances with the use of pneumatic tools, which had by then been in favour fo...
متن کاملPathophysiology of white fingers in workers using hand-held vibrating tools.
The pathogenic events and the localization of the primary lesion in white fingers among persons using hand-held vibrating tools are still unclarified. A "vibration disease" has been proposed to be due to damage to the limbic system and other brain structures which causes autonomic dysfunction. Current common opinion regards the pathogenesis of white fingers to be a result of longterm exposure t...
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ژورنال
عنوان ژورنال: INDUSTRIAL HEALTH
سال: 1964
ISSN: 0019-8366,1880-8026
DOI: 10.2486/indhealth.2.95