To solve the following problem: a conventional lock system which is resistant to unauthentic unlocking such as picking and excellent in security, has disadvantage of a complicated structure, and a key itself sometimes cannot be moved therein.
There is provided a new lock system which is formed of a keyhole, a key, and a moving section. The keyhole has a path space secured therein, that is large enough for the entire key to move therein, and has at least one or more lock devices arranged therein. The key can move in the keyhole. The moving section is formed by movably setting at least part of a keyhole peripheral portion covering the interior of the keyhole, in a manner movable in the keyhole. At the time of locking/unlocking, when the entire key is inserted into the keyhole, the key autonomously moves in the keyhole path to access the lock device set in the keyhole, and carries out locking/unlocking operation. By virtue of the lock system thus formed, a locking/unlocking method and the lock system that can avoid clogging of the key in the keyhole path, and can easily take the key out of the keyhole path, can be provided.
| JPS6213673 | LOCK APPARATUS OF SMALL CARGO CART |
OKAMOTO TAMAO
KAWANO HAJIME
Hiroki Naito
Daisuke Nagano
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