What are cylinder locks
The name “cylinder lock” delineates a broad spectrum. Although there are several different types of cylinder locks, we’re going to concentrate on one specific model.
Cylinder locks have several standardised profiles, one of which is the Euro profile which is common.
The name of the Euro Profile lock will give you a pretty clear indication of their traditional market location.
Specifically, such locks are commonly used across the UK.
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Common Types of Cylinder Locks
- Nightlatch cylinders (aka rim)
- Key-in-knobset cylinders
- Scandinavian oval cylinders
- Scandinavian round mortise cylinders
- Ingersoll Cylinders
- Banham Cylinders
Cylinder locks do not give any unique characteristics that qualify them for specialised use.
The cylinder lock does however have an advantage, It can be removed easily, without changing the bolt work.
If you live in a property with a cylinder lock profile, the door will already be built to accommodate that type of lock. This is the most prominent reason for continued use of the cylinder lock.
How They Work
Core(s) – As with most European locks, they also have very restrictive keyways. Often Cylinder locks have paracentric keyways, this means the wards on face of the lock extend past the centre of the keyway. There are no unique internal mechanisms for the cylinder locks. The cores mostly have pin tumbler or dimple configurations, but exceptions do endure.
Revolving Cam – They are often made of metal or hard plastic. An actuator or cam is a spinning object that is controlled by the key on the lock. The cam pushes the lock bolt in place. Many Euro profiles are even designed to work only one side at a time, so two people can not open the lock at the same time. It can damage the cam to too much pressure or wear. It will slip and this will prevent locking of the door. It means that as the cam moves it is misaligned, and the key is held when attempting to protect it. Specifically the device might lock, however it will need to be disengaged else the key cannot be removed.
Lock Body – There is a rectangular gap in the body in which the cam is mounted on the Euro profile. Two C-clips hold the cam in place. That gap, combined with the fixing hole, leaves very little remaining metal to hold the unit together. The gap divides two distinct cores which can be keyed alike or otherwise.
High-Security Additions – This can include sacrificial weak points, stainless steel pins (anti-drill protection), etc. In reality, anti-snap cuts don’t avoid snapping.What they do is to provide sacrificial points where the system can snap and leave enough of the lock in working order to avoid compromising the lock. In order that the metal on the drill bit will be softer than the protective metal, the anti-drill safety uses stainless steel.
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