a study on human factors of bench-workir.hust.edu.tw/bitstream/310993100/261/1/08-08...a study on...

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.