Abstract: A buffer unit for temporarily storing a substrate includes a housing having a space for storing a substrate therein, one or more slots disposed within the housing for placing a substrate thereon, and a holding unit disposed at a bottom portion of the housing, having a flat and non-inclined top surface, and comprising a built-in wireless charging module. A substrate type sensor is stored at the holding unit.

Abstract: A folding table tennis table includes: first to fourth vertical pillars fixed and installed perpendicular to the bottom of left and right table tennis tables; support means installed obliquely at an angle between the outer surface near the upper portion of the first to fourth vertical pillars and the bottom surface of the left and right table tennis tables to contract or expand according to an applied force; first to third folding means installed on a bottom surface of a surface facing the left and right table tennis tables; left first and second link means installed in parallel with one end connected to each of the first folding means and the third folding means and the other end.

Abstract: An integrated foldable table tennis table includes hinge units mounted on horizontal legs which are disposed below both table tennis tables with being separated therefrom; and link units pivotally installed between the hinge units and lower surfaces of both table tennis tables to fold or unfold the both table tennis tables. The hinge units include first and second brackets installed to face each other. The link units include first links of which one ends are pivotally attached to vertical legs and the other ends are pivotally attached to the hinge units, and second links of which one ends are pivotally attached to the lower surfaces of the both table tennis tables and the other ends are pivotally attached to the hinge units. The first link and the second link are pivotally connected to each other by a connecting pin which is inserted in holes formed at specific positions thereof.

Abstract: Disclosed is a refrigerator, in which the installation and the repair and replacement of a wire harness are easily achieved. In a refrigerator, in which a main body includes an inner casing, an outer casing, and a heat insulating layer provided between the inner and outer casings, and electric and electronic components including sensors and switches are electrically connected to a printed circuit board through a wire harness, an opening is formed through one side of the main body, and a harness block in which the wire harness and a plurality of connection housings for installing the wire harness are intensively disposed is detachably installed in the opening.

Abstract: Disclosed is a refrigerator, in which the installation and the repair and replacement of a wire harness are easily achieved. In a refrigerator, in which a main body includes an inner casing, an outer casing, and a heat insulating layer provided between the inner and outer casings, and electric and electronic components including sensors and switches are electrically connected to a printed circuit board through a wire harness, an opening is formed through one side of the main body, and a harness block in which the wire harness and a plurality of connection housings for installing the wire harness are intensively disposed is detachably installed in the opening.