Patent ID: 8740199
Filing Date: 2014-06-03
Classification: F16F,Y10T

Abstract:
1. A spring assembly comprising: a substrate; a coil spring having an end turn portion fixed to the substrate; an inner wall provided at an inner peripheral side of the coil spring so as to form a through hole in the substrate; and an outer wall provided at an outer peripheral side of the coil spring, wherein the inner wall forms a spring fixing wall configured to prevent the end turn portion of the coil spring from coming off in an axial direction of the coil spring, wherein the outer wall forms a support wall configured to prevent the end turn portion of the coil spring from moving in a radial direction of the coil spring, wherein the inner wall extends outward towards the outer wall so as to stake the end turn portion of the coil spring, and wherein a width of an opening formed by the inner wall and outer wall is less than a diameter of a wire rod forming the end turn portion of the coil spring.