Abstract: A refrigerator includes a cabinet, a door opening/closing the cabinet and having an opening that is penetrated in a front/rear direction, a transparent panel assembly mounted to cover the opening and through which the inside of the refrigerant is seen, and a lighting member provided in the door or the cabinet to brighten a rear side of the transparent panel assembly. The transparent panel assembly includes a front panel defining an outer appearance of a front surface, a rear panel defining an outer appearance of a rear surface, a spacer made of a metal material and disposed between the front panel and the rear panel to define a periphery of the transparent panel assembly. A heater mounting part on which a heater is mounted is disposed on the spacer, and when the heater generates heat, one side of the front panel, which comes into contact with the spacer, is heated.

Abstract: A tube insertion device which inserts a tube into a line path to perform an operation has an elongated hollow tube, an end effector connected to a front end of the tube such that the direction of the end effector is changed with respect to the tube, a plurality of wires connected to the end effector and extended into the tube and a tension controller controlling tensions of the plurality of wires. The tension controller controls tensions of a pair of wires facing each other in the opposite directions, in order to change the direction of the end effector.

Abstract: An endoscope robot inserted into a duct to perform a predetermined work includes a flexible first tube body, a joint structure coupled to an end of the first tube body, and an end-effector connected to the joint structure so that location and direction of the end-effector are adjusted by the joint structure. The joint structure includes a fixed arm coupled to an end of the first tube body, and a plurality of pivotal arms arranged in order in a row from the fixed arm and pivotally connected to each other. The first tube body curves and linearly moves in the duct to move the end-effector to a working position. The plurality of pivotal arms is pivoted at the working position to adjust location and direction of the end-effector.

Abstract: An endoscope robot inserted into a duct to perform a predetermined work includes a flexible first tube body, a joint structure coupled to an end of the first tube body, and an end-effector connected to the joint structure so that location and direction of the end-effector are adjusted by the joint structure. The joint structure includes a fixed arm coupled to an end of the first tube body, and a plurality of pivotal arms arranged in order in a row from the fixed arm and pivotally connected to each other. The first tube body curves and linearly moves in the duct to move the end-effector to a working position. The plurality of pivotal arms is pivoted at the working position to adjust location and direction of the end-effector.

Abstract: A tube insertion device which inserts a tube into a line path to perform an operation has an elongated hollow tube, an end effector connected to a front end of the tube such that the direction of the end effector is changed with respect to the tube, a plurality of wires connected to the end effector and extended into the tube and a tension controller controlling tensions of the plurality of wires. The tension controller controls tensions of a pair of wires facing each other in the opposite directions, in order to change the direction of the end effector.

Abstract: A hybrid method manufacturing apparatus for a torsion beam according to an exemplary embodiment of the present invention includes a pair of side punch molds where a semi-finished product material heated to approximately 880 to 800° C. is molded and a press mold where a cooling water circulation line decreasing the temperature of the processed finished product to approximately 750 to 450° C. while the semi-finished product material is molded to a processed finished product is installed, an advantage of high-temperature molding having high dimensional accuracy is maintained at the time of manufacturing the torsion beam and additional heat treatment such as tempering is selectively performed only when additional heat treatment such as tempering increases toughness because only a martensite structure is not formed in quenching treatment.

Abstract: A hybrid method manufacturing apparatus for a torsion beam according to an exemplary embodiment of the present invention includes a pair of side punch molds where a semi-finished product material heated to approximately 880 to 800° C. is molded and a press mold where a cooling water circulation line decreasing the temperature of the processed finished product to approximately 750 to 450° C. while the semi-finished product material is molded to a processed finished product is installed, an advantage of high-temperature molding having high dimensional accuracy is maintained at the time of manufacturing the torsion beam and additional heat treatment such as tempering is selectively performed only when additional heat treatment such as tempering increases toughness because only a martensite structure is not formed in quenching treatment.

Abstract: In a torsion beam manufacturing method using a hybrid method according to an exemplary embodiment of the present invention, dimensional accuracy is increased by high-temperature molding of performing molding by heating an internal structure up to A3 transformation point (950° C.) temperature at which the internal structure is austenited and tempering treatment is optionally performed only when the tempering treatment increases toughness because a ferrite structure is formed at a structural ratio of approximately 5% or less together with a martensite structure and a bainite structure by preventing quick cooling performed in a quenching treatment by lowering temperature through an indirect cooling method during the high-temperature molding process.