Patent ID: 9410354
Filing Date: 2016-08-09
CPC Classification: E05F,E05Y,F03G,F16B,F16F,Y10T

Claim Text:
1. A biasing device to be mounted to a mounting portion provided to one of an opening/closing body capable of opening and closing an opening of a stationary body and the stationary body to thereby bias the opening/closing body in a direction to open the opening/closing body when the opening/closing body closes the opening of the stationary body, the biasing device including: a pin member; a coil-shaped spring member; and a spring receiving member that includes a through hole into which the pin member is inserted, and is arranged to support one end of the spring member, wherein the pin member includes a shaft portion, around an outer periphery of which the spring member is disposed, a head portion that is provided adjacent to one end of the shaft portion so as to be brought into contact with a contact surface of the one of the stationary body and the opening/closing body, a spring supporting portion arranged to support the other end of the spring member, and an engaging portion arranged to engage the mounting portion to prevent the biasing device from being demounted from the mounting portion, and wherein the mounting portion has a concave shape, and includes an engaging hole provided to a bottom portion of the mounting portion, and wherein the engaging portion is arranged to engage an outside hole edge of the engaging hole, and wherein the engaging portion allows the pin member to move axially with respect to the spring receiving member and the mounting portion during opening and closing.