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A Study on Human Factors of Bench-Work
Stations
Abstract
The working-surface height of a bench-work table, which is one of the primary
equipments in bench work, has to be decided according to the concept of human-factor
engineering by taking the physical limits of human operators into account so that the
possibility of causing injury can be minimized and the safety requirements can be fulfilled.
This study bases on the analysis of anthropometry data measured from human subjects in the
practice of bench work and infers an appropriate value for the height of a bench-work table,
as well as the proper range of the working area. The result suggests a 93-cm height of a
bench table and a 120-cm distance between the bench vises. The study focuses on the
students in the department of mechanical engineering, and the subjects include the first three
grades of students in a senior vocational/industrial school, the first four grades of students in
a five-year institute of technology, and the first-grade students in a two-year institute of
technology.
Key words: Human factors engineering, Anthropometry, Bench work.
Teh-Tsang Tsai : Instructor, Department of Mechanical Engineering, HIT
1/4 6 [1]
1/12 [2]
1/7 [3]
2mx1.2m 150mm[1]
[4]
(Flexion)
[5]
[5]
(Human factors)
[6]
(Anthropometry) 16
19
[4]
(Sta t ic
anthropometry) (Dynamic
anthropometry)
1.
(1).
(2).
2.
(1).
(2).
(3).
(4).
(5).
3.
4.
(Bench work)
(Bench vise)
50~80mm 1[7,8]
7 5 1 0 0 1 2 5 1 5 0 m m
(CNS4037,CNS4038)
300mm
10mm
45
2(a)
30 75
2 ( b ) 30~40 [7,8]
16 205mm
10mm
10mm
3
45
20 ~30 25
4
30
90
40 [7,8]
5~10mm
300mm
50~60 [7,8]
( W )
1220mm(4 ) 1500mm 1820mm(6 )
2 0 0 0 m m 2 1 2 0 m m 2 1 5 0 m m
2350mm 2430(8 ) (D)
700mm 760mm 820mm 910mm(3 )
970mm 1100mm 1210mm(4 )
1220mm 1300mm (H)750mm
760mm 800mm 820mm 860mm
900mm 970mm 1040mm 1080mm
3 6 3 7 4 8
CNS
125mm
145mm 170mm
175mm 180mm 185mm 190mm
205mm
[9]
5
10mm
10mm
95%
10 ~15
6
(Grandjean,1988) [5,10,11,12,13,14]
5~10cm
10~15cm
15~20cm[5]
9 0 ~ 9 5 c m [ 11 , 1 2 ]
Sanders and McCormick
88~107cm[13]
[9]
7 Barnes
Squires
[12,13]
288.3mm 565.1mm[16]
[4,17,18]
[19]
[12]
(Christensen,1988) [20]
84
[5,19]
(Sanders, McCormick ,1987) [4]
(Chandra Pinnagoda ,1996) [21]
[22,23]
[24]
18 25
[15]
1.
2.
3.
16~19
3 12
170 172 174 168 180 181
175 180 168 180 175 170cm
( ) 4.7 95%
5%
1
(n) [25]
2001 10
22 88
(Martin system
anthropometer)
1 2
[23,26]
1. (Stature)
2. (Span)
3. (Elbow height)
4. (Foot breadth)
5. (Foot length)
6. (Shoulder breadth)
7.
[24]
16 19 95%
114 .0cm
3.5cm
= + =114.0
3.5 117.5cm
5~8cm [7,8]
=
( 5~8cm)
125mm
180mm
=117.5 (18 5~8)
94.5~91.5cm 93cm
(Space bubble)
0.67
35cm
(
3 ) = = 3 5
49=84cm
3
( 8
A)
= ( sin45 )
=11 32 (49 sin45 )=76.7cm
( 8
B)
=
tan30 tan30
=76.7 tan30 tan30 =25.5cm
= 8 4
25.5=109.5cm
5%
95%
10cm
120cm
[5,9,10,23]
= =(183
49)/2=67cm
10cm[23]
=
(67-10) 2=114cm
122cm 243cm(4
8 )
9
10~15cm (toe
space) [27]
1.
87 8 76
2.
83 21 133~147
3.
83 21 117~118
4.
8 9
7,26,50~52
5.
8 7
109,112,114,116,117,120,128
6.
85
2
7.
8 7
127~128,133~136,156~157,174~175
8. Labour Department for Industrial
Professional Education: Basic
proficiencies metal working-filing,
sawing, chiselling, sharing, scraping,
fitting. Labour Department for
Industrial Professional Education.
1958, p.02-02-12-2, 02-02-23-2, 02-03-
07-2, 02-03-32-3.
9.
65
129~130,134
10.
86
22~23,26,47
11.
86 1
12. Christopher D. Wickens, Sallie E.
Gordon and Yili Liu: An introduction
to human factors engineering.
Addison-Wesley Educational
Publishers Inc., New York, 1998, p.2,
pp.315-316.
13. Mark S. Sanders and Ernest J.
McCormick: Human factors in
engineeering and design. McGraw-Hill,
Inc., New York, 1993, p.418, p.432,
pp.435-437.
14.
89 2-
33~35
15.
1
16.
23 2
17.
1995 43~52
18. Dan Macleod: The ergonomics edge.
Van Nostrand Reinhold, New York,
1995.pp.34-36.
19. Alphonse Chapanis: Human factors in
systems engineering. John Wiley &
Sons, Inc., New York, 1996. pp. 11-16.
20. Robert W. Proctor and Trisha Van
Zandt: Human factors in simple and
complex system. Allyn and Bacon,
Boston, 1994, p.3,p.389
21.
1998 9
22.
1
23.
8 8 6 1 ~ 6 9 , 7 3
122,124
24.
91
92 61
25.
91
299
26.
2 0 0 0
62~65
27. K. H. E. Kroemer, H. B. Kroemer and
K. E. Kroemer-Elbert: Ergonomic.
Prentice-Hall, Inc., New Jersey, 1994,
p.47.
