[Construction - Section 185]
THE LOCK
A lock is a mostly mechanical, sometimes one or mekatronische device electronic, with a loosening of the mechanism using only one matching key permits. Without this right key, however, this prevents loosening.
Locks distinction is based on their design. The locks are used for another feature.
A CYLINDER LOCK
The cylinder lock is an American invention of the 19th Century. Today, these kinds of locks on most uses. Several either by gravity or spring force in the core pressed pencil or pen columns couples in housing pen and pencil core divides the core-block until all of the key so far in the case pressed that the subdivision at the core between housing and lying shear. Commercial cylinder locks have 5 or 6 pin columns.
COMMERCIAL LOCK
Ordinary locks are having only a barrier in the form of a plate in front of the locking canal that only the key with the right profile through. They are already Lockpicking with easy as a tool to open skeleton key. Usual locks are available with different profiles. The obstacle is a standard lock only with a steel spring blocked by the closure of the key area of the lock off, so that the continuing movement of the key to move the bar. Ordinary locks can be found today only in the most sensual apartment doors. Ordinary locks in the sense apartment doors usually have additional obstacle to a latch.
COMBINATION LOCK
Combination locks can be found in duplicate in mechanical banks, in suitcases, as a bicycle lock, as well as weapons safes or cabinets. Mechanical combination locks are usually based on rotating metal discs, with a groove which they are based. The individual discs will have a mechanism in the right position rotated, a function bolt picks in the grooves, and so the mechanism is unlocked.