The Study as for the Safety of "DO" for the Kendo Tool Standardization

剑道工具标准化中“DO”的安全性研究

• 批准号: 12680017
• 负责人: NAKIRI Fuminori
• 金额: $ 1.66万
• 依托单位: Tokyo University of Agriculture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12680017/
• 关键词: Kendo Tool; DO; Safety; Buffering Efficiency; Impact Force; Standard Value; 剣道具規格; 胴打撃力

The purpose of this study is to get the high basic data of the buffering efficiency of "DO " to have taken the characteristic of the Kendo athlete into consideration to make the standard Value to have considered safety. Therefore, it measured the impact force of "DO-UCI" of the kendo athlete and it collected the like actual state and basic data.1. In 2000, using the "DO" impact force measurement equipment, it measured the impact power of the "DO-UCHI" of the kendo athlete in each age (the schoolchild, the junior high school student, the high school student, the undergraduate, the adult) and the following results were obtained.1) The Magnitude of impact force of the junior high school student is very big, tends to strike strongly too much the consideration which is enough to prevent from a impediment in case of coaching of the technique. Because there are many, too, persons with big magnitude in the impact force of the man schoolchild, when setting a standard value about the buffering e … More fficiency of the "DO", it should take account of the standard value, which is same as the adult from the safe viewpoint.1) Each forces of the "DO" impact force emerges before at about 22-29% to the direction for the most part and then, it emerges at about 54-60% of rates to the right direction by about 12-19% in the lower direction.3) It thinks that the technical difference in the striking motion of the "DO-UCHI" and so on is the biggest as the factor which influences impact force.4) It is desirable to set the impact force value (the right level force) of the "DO-UCHI" generation equipment among from 100 kgf to 180 kgf from the impact force of the "DO-UCHI" measurement result of the kendo athlete.2. In 2001, it did impact force generation equipment manufacturing and the improvement of the impact force measurement equipment. Then, it made a difference in the efficiency of the buffering of the "DO" by the difference such as the material and the structure. When collecting the basic data to make the standard value of the "DO" to have considered safety, the following results were obtained.1) The kinds of existing "DO" are various but buffer the impact force, which acts on the body with the "DO-UCHI" depending in about 1/2.2) The "DO" width which is bigger than the width of the abdomen of the body improves buffering efficiency more.3) The difference in the material in the "DO" and the structure and the weight, too, influence buffering efficiency. Less

本研究的目的是为了得到高缓冲效率的基础数据，以考虑剑道运动员的特点，使标准值考虑到安全性。因此，对剑道运动员“DO-UCI”的冲击力进行了测量，收集了类似的实际状态和基础数据. 2000年，利用“DO”冲击力测定设备，测定了各年龄段剑道运动员的“DO-UCHI”的冲击力（小学生、初中生、高中生、大学生、成人）进行了冲击力的测试，得到以下结果：1）初中生的冲击力大小很大，倾向于强烈地打击太多的考虑，这足以防止在技术指导的情况下的障碍。由于男学童冲击力中人数太多，且冲击力的大小也较大，在设定缓冲系数标准值时， ...更多信息 “DO”的有效性，从安全的角度考虑，应考虑与成人相同的标准值。1）“DO”冲击力的各力在大部分方向上出现在约22-29%之前，然后，它以大约54-60%的比率出现在正确的方向上，以大约12-19%的比率出现在较低的方向上。等作为影响冲击力的因素是最大的。4）根据剑道运动员的“DO-UCHI”测量结果的冲击力，希望将“DO-UCHI”产生设备的冲击力值（正确水平力）设定在100 kgf至180 kgf之间。2001年，进行了冲击力发生设备的制造和冲击力测量设备的改进。然后，由于材料和结构的差异，“DO”的缓冲效率也不同。在收集基础数据使“DO”标准值考虑安全性时，得到以下结果：1）现有“DO”种类繁多，但缓冲冲击力，其作用在身体上的“DO-UCHI”约为1/2。2）大于身体腹部宽度的“DO”宽度更能提高缓冲效率。3）“DO”中的材料以及结构和重量的差异也会影响缓冲效率。少