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Abstract

This study investigated the physical characteristics of powered screwdrivers that affect the operator's productivity, occupational health, and quality of working life. The study was divided into two phases. The first phase evaluated the effect of grip diameter on the effort required to use the tool. The second phase evaluated two devices that can be attached to the tool and are intended to reduce operator effort and the potential for injury. The results illustrated that the diameter of the grip has an influence on the operator. The recommendations are counter to the common assumption made by industrial tool engineers that smaller tools are easier on the user. The results of the second phase illustrated that the tool attachments have merit with respect to the reduction of operator effort. The conclusions are important for both designers and users of powered tools.

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References

Ayoub, M. M. , and LoPresti, P. (1971). The determination of an optimum size cylindrical handle by use of electromyography. Ergonomics, 14, 509–518.

Biddle, H. L. (1981). Hand tools. Engineering, 221, 857–859.

Birbeck, M. , and Beer, T. C. (1975). Occupation in relation to the carpal tunnel syndrome. Rheumatology and Rehabilitation, 14, 218–221.

Charash, R. (1982). Tools need not harm the hands that use them. Industrial Design Magazine, 29, 255–258.

Drury, C. G. (1980). Handles for manual materials handling. Applied Ergonomics, 11.1, 35–42.

Falch, B. (1983). Left-sided CTS in butchers. Scandinavian Journal of Work Environment and Health, 9, 291–297.

Fitzhugh, F. E. (1973). Grip strength performance in dynamic gripping tasks (Occupational Health and Safety Engineering Technical Report). Ann Arbor: University of Michigan.

Fraser, T. M. (1980). Ergonomic principles in the design of hand tools (Occupational Safety and Health Series No. 44). Geneva, Switzerland: International Labour Office.

Greenberg, L. , and Chaffin, D. B. (1977). Workers and their tools: A guide to the ergonomic design of hand tools and small presses. Midland, MI: Pendall.

10.

Johnson, S. L. , and Childress, L. J. (1984). Ergonomic effects of pneumatic screwdriver design and use (Ergonomics Laboratory Report 84–2). Fayetteville: University of Arkansas, Industrial Engineering Department.

11.

Khalil, T. M. (1973). EMG methodology for the evaluation of industrial design. Human Factors, 15, 257–264.

12.

Lublin, J. S. (1983, January 14). Unions and firms focus on hand disorders that can be caused by repetitive tasks. The Wall Street Journal, pp. 25, 37.

13.

McCowen, T. (1981). Space Invaders wrist. New England Journal of Medicine, 304, 1368.

14.

Paulozzi, L. , Helgerson, S. D. , and Apol, A. (1984). Symptoms consistent with CTS among hotel and restaurant workers. Journal of Occupational Medicine, 26, 634.

15.

Pheasant, S. , and O'Neil, O. (1975). Performance in gripping and tuning: A study in hand/handle effectiveness. Applied Ergonomics, 6, 205–208.

16.

Replogle, J. O. (1983). Hand torque strength with cylindrical handles. In Proceedings of the Human Factors Society 27th Annual Meeting (pp. 412–416). Santa Monica, CA: Human Factors Society.

Evaluation of Powered Screwdriver Design Characteristics

Abstract

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