<考工記>之成書時代常有爭議。筆者延續前自青銅器物化學組成及尺寸以探討之 研究 (見註 9)， 今由 < 考工記 > 中所載有關車輪「輪徑」與「牙圍」之尺寸以及「輪輻 」之數，與出土之革輪比較。如自殷商至戰國末期幾十個車馬坑中約百餘車輪，大多不符 < 考工記 > 之規定。 但秦始皇陵兩銅車及兵馬俑坑三米戰車之輪為「輪輻三十」，唯其中能 合於 < 考工記 > 所述之牙圍 -- 輪徑關係者，亦僅一號銅車一例。故其規定可能起於秦始 皇時期，然就製造車輪而言，(考工記 ) 並無實用價值。又筆者以為「輪輻三十」乃戰國中 晚期的觀念。而 < 考工記 > 無「漆人」的記載，似有可能與從戰國末期以漆為奢侈品之親 點有關。因此亦可推想 < 考工記 > 非東周人之作。

　　　　　In continuing a previous study investigating the date and value of the K 'ao Kung Chi 考工記 based on the chemical composition and speci- fications of bronze artifacts (ref. 9), the present work compares the liter- ary standards for chariot wheel diameter, rim size and number of spokes with measurements taken from unearthed chariot wheels from the Shang through Chin dynasties. In this process, consistency was found in very few cases, and only for individual items rather than whole wheels. Three examples of the "30-spoke wheel" mentioned in the K'ao Kung Chi, two bronze chariots and one wooden chariot, were found in the tomb of the First Emperor of Chin. Moreover, the author puts forth the view that the "30-spoke wheel" concept originated during the middle or late Warring States period. The absence of any mention of "lacquer workers" 漆工 in the K'ao Kung Chi is also consistent with the fact that lacquer wares were considered luxury items in the late Warring States period. The findings of this study thus cast doubt on both the practical value of the K'ao Kung Chi and the claim that it was written during the Eastern Chou period.