Patent ID: 7085375

Claim:
A small-sized hinge device used for connecting mounting portions on each end portion of a first member and a second member to be relatively opened and closed by being nonrotatably inserted into mounting holes of said mounting portions, comprising: a case body having a closure plate with a bearing hole on one end portion, an open end portion on another end portion, and a baffle means on the circumference of said case body, said case body is nonrotatably inserted into mounting hole of either one of said members from the side of said closure plate; a fixed cam nonrotatably inserted on the side of said closure plate inside said case body, and having a through hole on the central portion in the axial direction and a first cam portion on one end portion; a shaft passing through said through hole of said fixed cam and said bearing hole of said closure plate, with one end portion thereof arrested outside of said closure plate and penetrating through said case body in the central axial direction thereof, and with another end portion protruded from the side of said open end portion; an arresting body mounted on the side protruding from said open end portion of said case body and engaged through said mounting hole of said mounting portion of either one of said members, with a rib portion mounted in circumferential axial direction; a cam slider slidably and nonrotatably mounted on said shaft, said cam slider having a second cam portion on the side confronting to said first cam portion; a compression spring interposed resiliently between said cam slider and said arresting body; and a slider washer provided on a portion of said shaft engaging with said closure plate of said case body.