Ergonomics - Atlas Copco

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4 EVALUATION EXAMPLES
134 Grinder GTG 40 F085 The relevant variables for the grinding machine can be selected from Table 3.1 (page 71). HANDLE DESIGN Variables Weighting Preferred Acceptable Permitted To be Score factors avoided (a) (0) (1) (3) (5) Circumference low force trigger activated a1=1 120 mm 0 Circumference trigger open a2=1 170 mm 0 Length low force a4=1 105 mm 0 End marking a6=0.5 smooth 0 Adjustability a7=0.5 no 0.5 Support surface a8=0.5 no 0.5 Viscoelastic coatiing a9=0.5 yes 0 Friction and ventilation a10=0.5 good 0 Table 4.1 Evaluation of handle design for the Grinder GTG 40 F085. This powerful (4.5 kW) grinder is regarded as a machine for male operators. The motor is an air-driven turbine. Total score: 1
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Power Tool Ergonomics E V A L U A T
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Acknowledgements While doing resear
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How to get the best out of this boo
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Work with international standards I
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Good ergonomics is good economics W
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10 SOCIOLOGY INDUSTRIAL SOCIOLOGY S
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12 Work organization No organizatio
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1 outside the production system, an
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1 A seated operator usually has goo
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1 without stretching the trunk. The
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20 The arm sling as a preventive me
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22 Extreme working postures in real
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2 Working with high feed forces req
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2 Working areas of a standing works
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2 body is lifted or tilted, or the
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30 The team is an important factor
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32 Grinders Grinders and sanders ar
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34 HanDle DeSiGn The hand grips on
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36 DUSt anD oil Although the machin
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38 Working environment In general,
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40 SHoCK reaCtion Sudden changes in
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42 practice. Sometimes the chisel h
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44 SHoCK reaCtion These tools do no
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46 heavy, assembly work is often hi
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48 depends on its inertia. The same
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50 bolts. Unfortunately there are a
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52 The low reaction torque in impul
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54 the working environment A typica
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56 Today, the angle nutrunner can b
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58 High torque nutrunners for use w
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60 Wheel nuts on trucks and buses a
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62 Introduction A basic ergonomic p
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64 Handle design The handle of a ha
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66 Arteries Veins (superficial) Vei
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68 Handle size Since a tool handle
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70 However, if the texture is too c
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72 Bibliography Chaffin, D.B. and A
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74 Fig. 3.3 The same feed force app
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76 Pushing and pulling Pushing a to
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78 the object, the shape of the obj
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80 Safety factor a 2 Frequency of t
Page 83 and 84: 82 Comments for different tool type
Page 85 and 86: 84 The trigger is either operated b
Page 87 and 88: 86 used in one handed operations. T
Page 89 and 90: 88 Weight The weight of a hand-held
Page 91 and 92: 90 stability of grip, the center of
Page 93 and 94: 92 Temperature Hand-held power tool
Page 95 and 96: 94 To ensure physical comfort durin
Page 97 and 98: 96 Score 40 30 20 10 0 Bibliography
Page 99 and 100: 98 the dynamic properties of the ma
Page 101 and 102: 100 High motor power and fast clutc
Page 103 and 104: 102 Score 40 30 20 10 0 shock react
Page 105 and 106: 104 piezo-electric crystal. When th
Page 107 and 108: 106 EN 50144 and EN 60745. Both ISO
Page 109 and 110: 108 hole of the wheel are wider tha
Page 111 and 112: 110 In the GTG 40 grinding machine,
Page 113 and 114: 112 RRH machines serves two functio
Page 115 and 116: 114 be noted that declared values b
Page 117 and 118: 116 Noise Noise was the first envir
Page 119 and 120: 118 value for 8 hours’ exposure t
Page 121 and 122: 120 We can start by looking at the
Page 123 and 124: 122 This is done with a minimum inc
Page 125 and 126: 124 microphones at a distance of 1
Page 127 and 128: 126 coated with dust or damaged by
Page 129 and 130: 128 This method has not been used b
Page 131 and 132: 130 tool cabinet. Many workplaces h
Page 133: 132 lubrication. Made from a compos
Page 137 and 138: 136 were simulated by fitting a whe
Page 139 and 140: 138 Drill LBB 26 EPX-060 The releva
Page 141 and 142: 140 applied to the center of the dr
Page 143 and 144: 142 Chipping hammer RRF 31 The rele
Page 145 and 146: 144 SHOCK REACTION There are no sho
Page 147 and 148: 146 Riveting hammer RRH 06 The rele
Page 149 and 150: 148 WEIGHT The weight is 1.3 kg, sc
Page 151 and 152: 150 Screwdriver LUM 22 PR4 The rele
Page 153 and 154: 152 This gives a score of 9. In pra
Page 155 and 156: 154 Impulse nutrunner EP9 PTX80-HR1
Page 157 and 158: 156 Due to friction in the hydrauli
Page 159 and 160: 158 Electric nutrunner ETP ST32-05-
Page 161 and 162: 160 WEIGHT The electric nutrunner i
Page 163 and 164: 162 Angle nutrunner LTV 29 R30-10 T
Page 165 and 166: 164 operator equal to installed tor
Page 167 and 168: 166 Electric angle nutrunner Tensor
Page 169 and 170: 168 WEIGHT The electric nutrunner i
Page 171 and 172: 170 High torque nutrunner LTP 51 Th
Page 173 and 174: 172 Score 40 30 20 10 0 NOISE The d
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Ergonomics - Atlas Copco

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