Method of calculating work burden index and apparatus for carryi

Details Method of calculating work burden index and apparatus for carryi Method of calculating work burden index and apparatus for carryi

1994-05-24

1998-04-21

Hayes, Gail O.

Surgery

Truss

Pad

128774, 482902, 395207, A61B 504

Patent

active

057408130

ABSTRACT:
In order to obtain an index which generally shows the work burden extent of various works carried out in an automobile assembling factory or the like, for each work content, the maximum muscle contraction ratio is measured after the work has been continued for 5 seconds, the work burden index (L) is calculated from the measured ratio value, and the equivalent work burden in a standard work is calculated from the calculated work burden index (L) for 5 seconds. The work burden index (TVAL) of actual work is calculated from the equivalent work burden and the actual work time. Suitably, a work routine plan is corrected such that the obtained TVAL is normalized with an apparatus comprising means for storing the equivalent work burden for each work content, means for displaying an image of the work content, and means for inputting work content parameter and so forth while watching the displayed image.

REFERENCES:
patent: 5018726 (1991-05-01), Yorioka
patent: 5301680 (1994-04-01), Rosengerg
Physical Therapy, V71, N1, p. 3(13) Electromyographic and Cinematographic Analysis of Movement from a Kneeling to a Standing Position in Healthy 5- to 7-year-old children, Dolio Vonder Linden, Jan. 1991.
Sato, Katsuura, Sato, Tochihara, Yokoyama et al., Human Engineering Basic Numerical Value Formulas Manual, Gihodo Shuppan, pp. 223-224, 1992.
Kogi & Hakamada, "Slowing of Surface Electromyogram and Muscle Strength in Muscle Fatigue", Rep. Inst. Labor, 60, 1962, pp. 27-41.

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