Patent ID: 7178199

Claim:
A hinge comprising: a base part; an arm; a connection mechanism disposed between one end part of said base part and one end part of said arm; a longitudinal direction that extends from said end part of said base part to an other end part of said base part, wherein the connection mechanism is adapted to turnably and removably, in an axial direction orthogonal to the longitudinal direction of said base part, connect one end part of said arm to one end part of said base part so that the other end part of said arm can approach or separate from the other end part of said base part; a lock lever turnably disposed at the other end part of said base part; and a turn biasing means for turn-biasing said lock lever in one direction comprising, one of said other end parts of said base part and said arm which oppose each other in the axial direction orthogonal to the longitudinal direction of the base part being formed with an engagement recess which is open toward the other, wherein said other being provided with an engagement part which is brought into said engagement recess through the opening part of said engagement recess when said arm is turned to a predetermined attachment position in a direction approaching the other end part of said base part, wherein said lock lever being provided at one end part thereof with a lock part, wherein said lock part is brought into engagement with the engagement part of said arm in said attachment position, wherein said arm is prevented from turning in a direction away from said attachment position when said lock lever is turned to a predetermined lock position in said one direction by a biasing force of said turn biasing means, wherein said lock part being separated from the other end part of said arm to allow the other end part of said arm to turn in the separating direction so that said engagement part can escape from said engagement recess when said lock lever is turned in the other direction from said lock position, and wherein said lock lever being provided at one end part thereof with a pressing part, wherein said pressing part being butted with the other end part of said arm in said attachment position, to turn the other end part of said arm in a separating direction from the other end part of said base part so that said engagement part can escape from said engagement recess when said lock lever is turned in said other direction from said lock position against the biasing force of said turn biasing means.