A coiled wave spring includes a first and second coiled portions. The first coiled portion has a plurality of first valley parts and a plurality of first peak parts. The first valley parts and the first peak parts are alternately disposed ina circumferential direction. The second coiled portion has a plurality of second peak parts and a plurality of second valley parts. The second peak parts respectively correspond to the first valley parts, whereas the second valley parts respectively correspond to the first peak parts. The second coiled portion extends continuously from the first coiled portion. The first peak parts are disposed away from the corresponding second valley parts at an interval in an axial direction. The first valley parts contact the corresponding second peak parts. Apices of the first valley parts are shifted from apices of the corresponding second peak parts in the circumferential direction.本發明之課題在於提供一種可抑制徑向擴展的螺旋波形彈簧及使用該彈簧之拖曳旋鈕。本發明之解決手段在於,螺旋波形彈簧(9),係具備第1捲部(91a)及第2捲部(91b)。第1捲部(91a),係在周方向上交替地具有複數個第1谷部(911a)及複數個第1山部(912a)。第2捲部(91b),係具有與各第1谷部(911a)對應的各第2山部(912b)、及與各第1山部(912a)對應的各第2谷部(911b)。此外,第2捲部(91b),係與第1捲部(91a)連續而延伸。各第1山部(912a),係配置成在軸向上與所對應的各第2谷部(911b)隔著間隔。各第1谷部(911a),係與所對應的各第2山部(912b)接觸。各第1谷部(911a)的頂點(913a),係在周方向上與所對應的各第2山部(912b)的頂點(914b)錯開。1‧‧‧握柄2‧‧‧捲線單元2b‧‧‧蓋構件2c‧‧‧腳部3‧‧‧轉子4‧‧‧捲軸10‧‧‧旋轉捲線器
