Abstract: There is provided an intermaxillary fixation releasing device in which intermaxillary fixation can be released without a special tool, and the labor of the practitioner and the burden on the patient are reduced. The intermaxillary fixation releasing device comprises a maxillary joint composed of a first synthetic resin; a mandibular joint composed of a second synthetic resin; and a connector composed of an elastomer, wherein the maxillary joint is provided with an upper-side interlocking part and an upper-side support part; the mandibular joint is provided with a lower-side interlocking part and a lower-side support part; the elastomer forming the connector is incompatible or substantially incompatible with the first synthetic resin and the second synthetic resin; and the maxillary joint and the mandibular joint are joined with the connector in a state in which the upper-side support part and the lower-side support part are embedded in the connector.

Abstract: A welding facility includes a main welding line for manufacturing an assembly of frame members, and a sub-welding line for manufacturing an assembly of panel members, the sub-welding line merging with the main welding line. The main welding line is comprised of a plurality of welding stages provided with a welding robot, the sub-welding line is provided at the end with a transfer mechanism for transferring the panel member assembly to the desired welding stage, and the merging parts are changeable according to the type of product to be welded. The facility permits a plurality of vehicle bodies having different vehicle types to be manufactured using the same manufacturing line.

Abstract: A welding facility includes a main welding line for manufacturing an assembly of frame members, and a sub-welding line for manufacturing an assembly of panel members, the sub-welding line merging with the main welding line. The main welding line is comprised of a plurality of welding stages provided with a welding robot, the sub-welding line is provided at the end with a transfer mechanism for transferring the panel member assembly to the desired welding stage, and the merging parts are changeable according to the type of product to be welded. The facility permits a plurality of vehicle bodies having different vehicle types to be manufactured using the same manufacturing line.

Abstract: There is provided an intermaxillary fixation releasing devise in which intermaxillary fixation can be released without a special tool, and the labor of the practitioner and the burden on the patient are reduced. The intermaxillary fixation releasing devise comprises a maxillary joint composed of a first synthetic resin; a mandibular joint composed of a second synthetic resin; and a connector composed of an elastomer, wherein the maxillary joint is provided with an upper-side interlocking part and an upper-side support part; the mandibular joint is provided with a lower-side interlocking part and a lower-side support part; the elastomer forming the connector is incompatible or substantially incompatible with the first synthetic resin and the second synthetic resin; and the maxillary joint and the mandibular joint are joined with the connector in a state in which the upper-side support part and the lower-side support part are embedded in the connector.

Abstract: A method is disclosed for manufacturing a plurality of vehicle bodies having different vehicle types using the same manufacturing line. In the method, when a frame member assembly and a panel member assembly of the vehicle body are to be joined, the frame member assembly and the panel member assembly are welded on a different welding stage, enabling the welding stage to be changed according to the vehicle type.

Abstract: An electrode tip holder, a welding method, and an electrode tip adjusting device. The electrode tip holder comprises a chuck body having an inner diameter hole with a first tapered inner peripheral surface diverging toward the tip thereof, a lock nut threaded with the tip male screw part of the chuck body, and a collet fitted to the inner diameter hole. The collet is axially pressed since the lock nut is threaded with the tip male screw part and reduced in diameter by the elastic deformation of a slit to hold an electrode tip fitted to the inside thereof. The chuck body comprises a coolant supply port supplying a coolant to a groove part and a coolant recovery port recovering the coolant from the groove part which are opened at positions facing the groove part.

Abstract: A torch for MIG welding includes a gas nozzle for supplying a fluid therethrough to a workpiece, a tip disposed coaxially in the gas nozzle for supplying an electrode wire from a center thereof to a workpiece, and a rotor rotatably supported on the tip. The rotor includes a plurality of blades connected to a bearing rotatably supported on the tip for receiving rotary power due to a flow of fluid through the gas nozzle, a ring joining ends of the blades, and a plurality of spatter removal plates extending axially along an inner surface of the gas nozzle.

Abstract: A torch for MIG welding includes a gas nozzle for supplying a fluid therethrough to a workpiece, a tip disposed coaxially in the gas nozzle for supplying an electrode wire from a center thereof to a workpiece, and a rotor rotatably supported on the tip. The rotor includes a plurality of blades connected to a bearing rotatably supported on the tip for receiving rotary power due to a flow of fluid through the gas nozzle, a ring joining ends of the blades, and a plurality of spatter removal plates extending axially along an inner surface of the gas nozzle.