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240 Landmarks TopProduction > Kanban system
 Kanban system
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When the Koromo Plant, which was completed in 1938, was being built, Kiichiro Toyoda, the founder of Toyota Motor Corporation, adopted a plant layout in which production lines are linked to each other so that parts can be supplied by each part production line synchronized with the final assembly line. He advocated and carried out the Just-In-Time production system in which the necessary items for a plant are produced at the right time and right amounts. However, this attempt was suspended due to a commitment to war production, etc.
In the 1950s, the Just-In-Time production system was implemented to eliminate redundant items amid a general lack of financial resources and materials. The Kanban system was invented and utilized as a tool to realize this production in the 1960s. In a downstream process, a Kanban is removed when parts are used. The amount of necessary parts shown on the Kanban is reported to the preceding process. In the preceding process, the amounts of necessary parts on the Kanban that are removed for reporting are produced. In this way, the Kanban system became widely used as a tool to give conveyance instructions for the downstream process and production instructions for the preceding process.
The key to the Just-In-Time system is "flowing production". When various types of parts are manufactured in the same line, it is necessary to average the number of production items per unit time for smoothly producing parts that are passed to the downstream process. Therefore, in 1971, a rotary type instruction device was adopted at an engine plant where multiple models were assembled. Its mechanism arranges model indication plates in a rotary device, and sequentially displayed on a TV by rotation in order to specify the assembly model online.
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Storage location:TOYOTA COMMEMORATIVE MUSEUM OF INDUSTRY AND TECHNOLOGY (1-35, Noritake Shinmachi 4-chome, Nishi-ku, Nagoya-shi, Aichi 451-0051)
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Year manufactured:1960
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Manufacturer:Toyota Motor Corporation
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Classification:Replica
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Current status:On display (static): open to the public
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Model:Kanban
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Company name:Toyota Motor Corporation
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Year of manufacture:1960
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