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An evaluation of knife handle guarding.

Authors
Cochran-DJ; Riley-MW
Source
Hum Factors 1986 Jun; 28(3):295-301
NIOSHTIC No.
00164140
Abstract
Factors affecting the performance of tang guards in preventing meat packing injury due to the hand slipping forward on the knife handle were evaluated in nine male and nine female subjects. The two variables studied were the radius of transition from the handle to the blocking portion of the tang and the height of the tang. Approximately half of the subjects were currently employed or former meat cutters. The remainder were machinists, secretaries, technicians, homemakers, laborers, teachers, and students. The four guard heights tested were 0.508, 1.016, 1.524, and 2.032 centimeters (cm). The three radii of curvature were 0.533, 0.800, and 1.067cm. Testing was conducted under slippery film conditions. There was no effect for either men or women for the radii evaluated. The guard height had a significant effect for both genders. For female subjects, there was minimal improvement in the force exerted when the guard height was more than 1.016cm. In male subjects, there was minimal improvement in the force exerted when the guard height was more than 1.524cm. The authors conclude that a guard height adequate for male subjects is also adequate for female subjects. Guard heights less than 1.524cm are less capable of preventing slipping. By these standards, tang guards for most knives presently used in meat packing are inadequate.
Keywords
Meat-packing-industry; Sex-factors; Cutting-tools; Hand-tools; Meat-handlers; Food-processing-workers; Injuries; Occupational-hazards; NIOSH-Publication; NIOSH-Grant
Contact
David J. Cochran, Industrial and Management Systems Engineering Dept., 175 Nebraska Hall, University of Nebraska, Lincoln, NE 68588-0518
CODEN
HUFAA6
Publication Date
19860601
Document Type
Journal Article
Funding Amount
66744
Funding Type
Grant
Fiscal Year
1986
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-01134
Issue of Publication
3
ISSN
0018-7208
Source Name
Human Factors
State
NE
Performing Organization
Industrial & Mgmt Systems Engr University of Nebraska 175 Nebraska Hall Lincoln, Nebr 68588
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