Difference of Proficiency in Wooden Tub Manufacturing
- 1.2k Downloads
Kioke (wooden tub) production, which is a traditional industry, is gathering attention recently because of its great ability for brewing. However, producers of kioke are decreasing year by year, and it may also lead to crisis in oral tradition of production method of kioke resulting from this situation. In this research, the movement of kioke manufacturing was analyzed in order to change the tacit knowledge to explication of knowledge. As a result, there is clearly difference be-tween expert and non-expert, and it could be expressed as values.
KeywordsWooden tub Traditional industry Proficiency Motion analysis
2 Manufacturing Process
3 Experimental Procedure
Biological data of subjects
4 Results and Discussion
4.1 Difference in Quality Between the Expert and the Non-Experts
Qualty of Owari.
There is clearly difference between first half of owari process and second half. In all subjects, amounts of gap in first half is larger than second half. This result means second half of owari process is easier than first half of owari process. A point worthy of special mention is the difference of gaps of first half between experts and a non-expert is larger than second half. It indicates first half of owari process is required for proficient skills.
4.2 Difference in Movement Between the Expert and the Intermediate
Stroke quantity and speed of expert and intermediate
In this study, we focused on owari process, which is an initial step in the production of bamboo hoops necessary for holding together a kioke, and examined the difference in movement between the expert and the non-expert. In addition, amount of gap was calculated by divided a length of arc by a radius of bamboo.
As a result, expert had 2.5 %, intermediate had 2 % and non-expert had 3.9 % gaps as average. In all subjects, amounts of gap in first half is larger than second half, and the difference of gaps of first half between experts and a non-expert is larger than second half. It indicates first half of owari process is required for proficient skills.
It was revealed that the expert has larger stroke quantity and faster speed during owari process compared to the non-expert. Moreover, the expert and the non-expert differ in their work posture, and it can be inferred that the expert takes a posture that is easier for him to move his shoulders.