研究生: |
魏毓利 Wei Yu-Li |
---|---|
論文名稱: |
TFT-LCD廠推車作業之人因工程評估 Ergonomics Evaluation of Cart Pushing and Pulling in TFT-LCD Industry |
指導教授: |
王茂駿
Wang Mao-Jiun J. |
口試委員: | |
學位類別: |
碩士 Master |
系所名稱: |
工學院 - 工業工程與工程管理學系 Department of Industrial Engineering and Engineering Management |
論文出版年: | 2007 |
畢業學年度: | 95 |
語文別: | 中文 |
論文頁數: | 88 |
中文關鍵詞: | 人工搬運車(MGV) 、推車作業 、施力大小 、TFT-LCD |
外文關鍵詞: | manual guided vehicle(MGV), cart, force exertion, TFT-LCD |
相關次數: | 點閱:2 下載:0 |
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由於TFT-LCD廠內的搬運工作日益仰賴推車,隨著推車使用的廣泛,其設計及操控性問題乃成為重要議題。本研究首先將探討在靜態下姿勢與最大推拉力間的關係,再於動態下以施力大小、肌電訊號之客觀數值,及不舒適評比和推車相關問題問卷之主觀評估,對推車作業進行評估與設計改善。
本研究分成兩階段進行,分別為實驗I:最大推拉力實驗,及實驗II:推車實驗,實驗設計均採巢狀因子設計。實驗I因子包括性別(女、男)、動作方向(推、拉)、把手高度(88 cm、101.5 cm、115 cm 、135 cm)、姿勢(平行、一前一後),而探討的相依變數為最大施力及步距。此外,亦探討受試者在偏好姿勢及高度下的最大推拉力。結果顯示在把手高度115 cm及135 cm,採用一前一後的姿勢,且以推的方式,可施出最大的力量,且男性最大施力大於女性。
實驗II分成大推車作業與小推車作業兩部分,其實驗因子包括性別(女、男)、推車型式(推、拉)、把手高度(88 cm、101.5 cm、115 cm)、負重(空車、滿載),又小推車多探討了輪徑(6吋、8吋)因子,而所探討的相依變數為施力大小、肌電訊號值、主觀不舒適評比及推車相關問題問卷。實驗顯示主觀與客觀之結果一致,是為把手高度設於115 cm處,及採用6吋之輪徑,且採用「推」車方式作業是為較省力之推車操作方式,並且建議由男性來操作推車。
The production in TFT-LCD (Thin Film Transistor-Liquid Crystal Display) industry involves heavy manual materials handling with the aid of manual vehicles, such as carts, trucks, and so on. Thus the design and usability of manual vehicles become an important issue. This study includes two phases, i.e. experiment I and experiment II. Both experiments are nested factorial design. For the experiment I, gender (male, female), handel height (88 cm, 101.5 cm, 115 cm, 135 cm), direction of motion (push, pull) and stances (feet side-by-side, one in front of the other) were the independent variables. The dependent measures were force exertion and step. Besides, we also evaluated maximual force exertion on subject's prefer handel height and stance. The results indicate that handle height to be set at 115 cm or 135 cm, and pushing with one foot in front of the other can exert maximual force. Futhermore, males exerted higher force than females.
Experiment II involves two parts, i.e. large and small carts. For the experiment design, handle height (88 cm, 101.5 cm, 115 cm), type of operation (push, pull) and load (empty, full) were the independent variables. Besides, force exertion, EMG, subjective discomfort rating and cart related questionnaire were the dependent measures. The size of wheels (6 inch, 8 inch) were considered in small cart experiment. The results indicate that handle height should be set at 115 cm, wheels with the diameter of 6 inches and operated by pushing are recommended. Moreover, it is also recommended to assign male operators to manipulate the carts.
[1] 王茂駿,王明揚,林昱呈,2002,台灣人體計測資料庫手冊,中華民國人因工程學會。
[2] Al-Eisawi, K.W., Kerk, C.J., Congleton, J.J., Amendola, A.A., Jenkins, O.C. and Gaines, W.G., 1999a. Factors affecting minimum push and pull forces of manual carts. Applied Ergonomics, 30, 235-245.
[3] Al-Eisawi, K.W., Kerk, C.J., Congleton, J.J., Amendola, A.A., Jenkins, O.C. and Gaines, W.G., 1999b. The effect of handle height and cart load on the initial hand forces in cart pushing and pulling. Ergonomics, 42, 1099-1113.
[4] Borg, G., 1982. Psychophysical bases of perceived exeretion. Medicine and Science in Sports and Exercise, 14, 377-381.
[5] Borg, G., 1998. Borg’s perceived exertion and pain scales. Human Kinetics.
[6] Brechtje, J.D., 1993. Static force exertion in postures with different degrees of freedom. Ergomonics, 36(4), 397-406
[7] Chaffin, D.B. and Andres, R.O., 1983. Volitional postures during maximual push/pull exertions in the sagittal plane. Human Factors, 25(5), 541-550.
[8] Chang, S.C., 2005. The TFT-LCD industry in Taiwan: competitive advantages and future developments. Technology in Society, 27, 199-215.
[9] Chen, M.J., Fan, X. and Moe, S.T., 2002. Criterion-related validity of the Borg ratings of perceived exertion scale in healthy individuals: a meta-analysis. Journal of Sport Sciences, 20, 873-899.
[10] Corlett, E. N. and Bishop, R. P., 1976. A technique for assessing postual discomfort. Ergonomics, 19, 175-182.
[11] Das, B., Wimpee, J. and Das, B., 2002. Ergonomics evaluation and redesign of a hospital meal cart. Applied Ergonomics, 33, 309-318.
[12] Delagi, E.F. and Perotto, A., 1994. Anatomical guide for the electromyographer: The limbs and trunk 3rd .Thomas, Springfield.
[13] De Looze, M.P., van Greuningen, K., Rebel, J., Kingma, I. and Kuijer, P.P.F.M., 2000. Force direction and physical load in dynamic pushing and pulling. Ergonomics, 43, 377-390.
[14] Eastman Kodak Company, Ergonomics group, Health and Environment Laboratories, 1986. Ergonomics Design for people at work, vol.2. Van Nostrand Reinhold, New York.
[15] Ellermeier, W. and Westqhal, W., 1991. On the “absoluteness” of category and magnitude scales of pain. Perception and Psychophysics, 49, 159-166.
[16] Hayes, M.H. and Patterson, D.G., 1921. Experimental development of the graphic rating method. Psychological Bulletin, 18, 98–99.
[17] Hislop, H.J. and Montgomery, J., 1995. Muscle Testing 7th. W.B. Saunders company.
[18] Hoozemans, M.J.M., Van der Beek, A.J., Frings-Dresen, M.H.W., Van Dijk, F.J.H. and Van der Woude, L.H.V., 1998. Pushing and pulling in relation to musculoskeletal disorders: a review of risk factors, Ergonomics, 41, 757-781.
[19] Hoozemans, M.J.M., Van der Beek, A.J., Frings-Dresen, M.H.W., Van der Woude, L.H.V. and Van Dijk, F.J.H., 2002. Pushing and pulling in association with low back and shoulder complaints. Occupational and Environmental Medicine, 59, 696-702.
[20] Hoozemans, M.J.M., Kuijer, P.P.F.M., Kingma, I., Van Dieen, J.H., De Vries, W.H.K., Van der Woude, L.H.V., Veeger, D.J., Van der Beek, A.J., and Frings-Dresen, M.H.W., 2004. Mechanical loading of the low back and shoulders during pushing and pulling activities. Ergonomics, 47, 1-18.
[21] Jager, M., Luttmann, A. and Laurig, W., 1984. The load on the spine during the transport of dustbins. Applied Ergonomics, 15, 91-98.
[22] Jansen, J.P., Hoozemans, M.J.M., Van der Beek, A.J. and Frings-Dresen, M.H.W., 2002. Evaluation of ergonomic adjustments of catering carts to reduce external pushing forces. Applied Ergonomics, 33,117-127.
[23] Jung, M.C., Haight J.M. and Freivalds, A., 2005. Pushing and pulling carts and two-wheeled hand trucks. International Journal of Industrial Ergonomics, 35, 79-89.
[24] Kuiper, J.I.,Burdorf, A., Verbeek, J.H.A.M., Frings-Dresen, M.H.W., Van der Beek, A.J. and Viikari-Juntura, E., 1999. Epidemiological evidence on manual material handing as a risk factor for back disorders: a systematic review. International Journal of Industrial Ergonomics, 15, 427-436.
[25] Kumar S., Narayan, Y. and Bacchus, C., 1995a. Symmetric and asymmetric two-hand pull-push strength of young adults, Human Factors, 37, 854-865.
[26] Kumar S., 1995b. Upper body push-pull strength of normal young adults in sagittal plane at three heights. International Journal of Industrial Ergonomics, 15, 427-436.
[27] Lee, K.S., Chaffin, D.B., Herrin, G.D. and Waiker, A.M., 1991. Effect of handle height on lower-back loading in cart pushing and pulling. Applied Ergonomics, 22, 117-123.
[28] Lee, K.S., Chaffin, D.B. and Parks, C., 1992. A study of slip potential during cart pushing and pulling. IIE Transactions, 24 (5), 139-146.
[29] Mack, K., Haslegrave, C.M. and Gray, M.I., 1995. Usability of manual handling aids for transporting materials. Applied Ergonomics, 26, 353-364.
[30] Randall, S.B. and Jeter G., 2003. A guide to manual material handling and back safety. NC Department of Labor Division of Occupational Safety and Health 4 W. Edenton St. Raleigh, NC 27601-1092 Cherie K. Berry Commissioner of Labor.
[31] Resnick, M.L. and Chaffin, D.B., 1995. An ergonomic evaluation of handle height and load in maximal and submaximal cart pushing. Applied Ergonomics, 26, 173-178.
[32] Thatcher, A., James, J. and Todd, A., 2005. Current trends in research foussed on
pushing and pulling. The Forth International Cyberspace Conference on
Ergonomics. Johannesburg: International Ergonomics Association Press.
[33] Van der Beek, A.J., Kluver, B.D.R., Frings-Dresen, M.H.W. and Hoozmeans, M.J.M., 2000. Gender differences in exerted forces and physiological load during pushing and pulling of wheeled cages by postal workers. Ergonomics, 42, 269-281.
[34] Van der Windt, D.A.W.M., Thomas, E., Pope, D.P., De Winter, A. F., Macfarlane, G. J., Bouter, L.M. and Silman, A.J., 2000. Occupational risk factors for shoulder pain: a systematic review. Occupational and Environmental Medicine, 57, 433-442.
[35] Wewers, M.E. and Lowe N.K., 1990. A critical review of visual analogue scales in the measurement of clinical phenomena. Research in Nursing and Health, 13, 227-236.