木材加工用手推鉋床安全性能研究

國內相關於木材加工用手推鉋床研究報告，大多只針對手推鉋床之防護裝置及檢驗方式進行探討，尚無關手推鉋床操作性能之測試研究，故本報告除就行政院勞委會所頒布之「機械器具防護標準」第23條至31條重新加以分析比較並提出建議外，亦依不同材料及鉋削厚度加以測試，以瞭解手推鉋床在使用過程中所造成之震動、阻力及噪音之狀況。在測試實驗中，對目前國內常用之七種樹種，選用了四種木材規格大小（350×60×60mm3、350×60×50mm3、350×60×30mm3、350×60×20mm3）之標準塊，量測其在進行鉋削0.5mm、2mm、4mm及6mm厚度時的阻力、震動及噪音之狀況；由測試的結果顯示，在進行6mm鉋削量時：1.最大向後阻力為26.9公斤；2.最大向上震幅為3.15公分；3.最大噪音值為93.5分貝。並且屬於硬質材料的柳安木（350×60×60mm3）於承受6mm鉋削時產生26.9公斤之阻力，而同時屬於軟質材料的香衫木（360×60×60mm3）則只產生19.6公斤之阻力，由此可知，操作者鉋削硬質材料所必須承受的阻力會大於軟質料。另一方面，屬於硬質材料的柚木（360×60×20mm3）承受6mm鉋削時產生2.42公分之震幅，而屬於軟質材料的香杉木（360×60×20mm3）則只產生2.01公分之震幅，故操作者鉋削硬質材料所必須承受的震幅會大於軟質材料。最後並將其研究結果，做為「機械器具防護標準」相關條文規定之學理依據，和日後相關研究之參考。

Most of the relevant research of Jointer in recent years only focus in manufacturing standards, and there is few paper concentrating on the safety performances during operate. Therefore this report will not only study and compare the machinery safeguarding codes from article 23 to article 31, but also measure the noise, vibration and reaction force according to difference polishing (i.e. cutting) thickness of seven most common used wood by industry. In the experimental testing, we choose four difference samples for experimental measurement (350×60×60mm3、350×60×50mm3、350×60×30mm3、350×60×20mm3) under 0.5mm, 2mm, 4mm and 6mm polishing thick ness. The result shows: 1.maximum reaction force on push hand was 26.9kg; 2.maximum upper ward displacement was 3.16cm; 3.maximum noise reaching 93.5dB. Obviously, also the harder wood in reaction force, displacement and noise are significant higher than the sorter wood. This report presents the testing method and experimental data that will provide to revise machinery safeguarding codes and relative research in the future.