@article{oai:gunma-u.repo.nii.ac.jp:00003367,
 author = {長屋, 幸助 and 平田, 康夫 and 鶴見, 豊明 and 武田, 定彦 and 永井, 健一 and 谷藤, 克也},
 issue = {533},
 journal = {日本機械学會論文集. C編},
 month = {Jan},
 note = {application/pdf, Journal Article, Stresses in elliptical-cross-section coil springs become small as compared to other springs used in practical machines at a certain aspect ratio. This article presents a simplified stress expression for designing the elliptical-cross section coil springs. The stresses obtained by the present design formula are compared with those obtained by numerical methods. It is ascertained that the present formula is applicable to design the elliptical-cross section-coil springs.},
 pages = {283--287},
 title = {だ円断面線ばねの実用設計式},
 volume = {57},
 year = {1991}
}