Patent ID: 9316280
Filing Date: 2016-04-19
CPC Classification: F16F,H04M,Y10T

Claim Text:
1. A spring unit comprising: a resin spring that is made of a resin, has a structure having a single beam, and includes a pair of resin spring end parts and a resin spring curved part between the pair of resin spring end parts, a metallic spring that is made of a metallic wire and has a metallic spring curved part between a pair of metallic spring end parts, wherein each of the metallic spring end parts is attached to each of the resin spring end parts so that the metallic spring end parts are wound around the corresponding attaching flange of the resin spring, wherein, in a state where each of the metallic spring end parts is attached to each of the resin spring end parts, the resin spring and the metallic spring are positioned on a same plane and are mutually separated at parts other than the resin spring end parts and the metallic spring end parts.