An insertion-type hinge assembly may include a first hinge member including a mount unit and a shaft that is separated from and coupled to the mount unit, and that is positioned in parallel to the mount unit. The hinge assembly also includes a second hinge member that receives the shaft therein so as to rotatably couple the first and second hinge members. The first and second hinge members may be installed in corresponding recesses of a door and a main body such that they are not exposed.