TRANSPORT DEVICE USING LINEAR MOTOR

• Main Authors: HOSHINO TOSHIHIKO, SAKAMOTO TOSHIHARU
• Format: Patent
• Language: English
• Published: 16.01.1991
• Subjects: CONVEYING; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; HANDLING THIN OR FILAMENTARY MATERIAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PACKING; PERFORMING OPERATIONS; PNEUMATIC TUBE CONVEYORS; SHOP CONVEYOR SYSTEMS; STORING; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING; VEHICLES IN GENERAL

PURPOSE:To prevent the collision of transported matters between themselves by maintaining a distance between both transported matters at more than a fixed value while these adjoining transported matters are being transported simultaneously or about at the same time. CONSTITUTION:In a case in which a transported matter P which is in the middle of being transported at a preset speed between the adjoining work stations on the basis of the operation control of a linear motor 23, has abnormally neared another transported matter which adjoins, due to some reason or other, this is detected by means of a position detection means. On the basis of this detection result, the transport speed of at least one of the adjoining transported matters P is corrected by means of a correction means 41, and the transported matter P is transported on the basis of the this corrected speed. As a result, in a case in which adjoining transported matters are transported simultaneously or the transport of a transported matter on the rear side of a transported direction is commenced when a transported matter on the front side is in the middle of being transported, the collision prevention of transported matters between themselves and the improvement of a transport efficiency are compatibly realized by changing suitably a speed in the middle of transport.