To provide a coil spring with excellent fatigue resistance and corrosion fatigue resistance.SOLUTION: A coil spring according to one embodiment is formed from a wire wound in a spiral manner, and has a seat turn part and an effective part. The surface of the wire in the seat turn part has a first region, and a second region that is softer than the first region. Further, in a circumferential direction centered on an axis of the wire, the second region is formed over a wider area than the first region.SELECTED DRAWING: Figure 2
【課題】 耐へたり性や耐腐食疲労性に優れたコイルばねを提供する。【解決手段】 一実施形態に係るコイルばねは、螺旋状に巻かれた素線により形成され、座巻部および有効部を有している。前記座巻部における前記素線の表面は、第1領域と、前記第1領域よりも柔らかい第2領域とを有している。さらに、前記素線の軸を中心とした周方向において、前記第2領域は、前記第1領域よりも広い範囲に形成されている。【選択図】 図2
COIL SPRING, SUSPENSION DEVICE AND METHOD FOR MANUFACTURING COIL SPRING
コイルばね、懸架装置およびコイルばねの製造方法
2024-05-14
Patent
Electronic Resource
Japanese
Coil spring, suspension device, and coil spring manufacturing method
European Patent Office | 2024
|SUSPENSION COIL SPRING DEVICE AND METHOD FOR MANUFACTURING SUSPENSION COIL SPRING DEVICE
European Patent Office | 2020
|COIL SPRING, SUSPENSION DEVICE, AND METHOD FOR MANUFACTURING COIL SPRING
European Patent Office | 2023
|COIL SPRING, SUSPENSION DEVICE, AND METHOD FOR PRODUCING COIL SPRING
European Patent Office | 2024
|