The principle of pinball lock unlocking

The principle of pinball lock unlocking

Pinball locks are usually used in barrel locks. The center of the cylinder lock is a cylinder hole in which a cylinder lock core (Plug) is placed. When opening, the lock cylinder must be able to rotate.
In the middle of the lock cylinder is a slot for inserting the key, one end of the slot is open for inserting the key, and the end is a lever. When the key is fully inserted, the lever retracts a bolt, giving the lock cylinder a chance to rotate. There is a protruding part above the slot to prevent the key pins (also known as the lower spring or the lower ball) from falling off, and it also increases the difficulty of unlocking with tools. There are five to six small holes on the top of the lock cylinder, in a straight line, for placing lower marbles of different lengths. The bottom of the lower marble is spherical, allowing the inserted key to pass easily.
Above each lower pin is a corresponding flat-head pin (driver pins, also known as upper spring or upper ball). The flat-headed marble is pressed downward by a spring. The simple lock has only one flat-headed marble for each lower marble. More complex locks (for example, locks that can be opened with multiple keys) will have more than one flat-headed marble on the lower marble. The shell of the lock has several vertical pits, which are used to place flat-headed marbles and springs.
When assembling the pin lock, each pin is pressed down into the lock cylinder by the spring. The place where the lock core and the shell meet is called the shear point. After inserting a suitable key into the lock cylinder, the marbles are pushed up by the teeth of the key, and the seams between the marbles are exactly at the intercept point, so the lock cylinder can be rotated and the lock can be opened. After the key is pulled out, the marbles fall and stop above the intercept point, and the lock cylinder cannot rotate.
Some locks can be opened with the Master Key (also known as the Lily Key). This lock is equipped with two sets of flat-headed marbles, resulting in two intercept points. One of the cut-off points is to open the master key, the same set of locks will be the same. Another cut point is that each lock is different and can only be opened with a unique key.
When the key is not inserted, push down the blue flat-headed pin (driver pins, also known as the upper lock spring or bead) in the lock to prevent the plug from rotating. Put in the correct key, the blue flat-headed pin, the red bottom The space between the key pins (also known as the lower lock spring or the lower bead) is in a straight line and aligned with the yellow lock cylinder. When the space between the marbles is aligned with the turning line, the yellow lock cylinder can be turned
Unlocking method 1: Crash the key. The principle is to insert the tool under the lower marble and hit it up quickly at the same time. At this time, the lower marble will hit the marble, so that the upper marble will be thrown high in a very short time. You only need to master the upper and lower marbles. The tumbler lock can be opened by separating instantly. This method allows people to open a large number of pin locks without technical training. It has attracted attention in Europe, the United States, Hong Kong and other places. In order to prevent this method of unlocking, some locks have another lock in the cylinder, and the key must be used. It is suitable for the pit to be pushed open to rotate.
Unlock method 2: Needle-shaped unlocker and torsion wrench. The principle is to unlock the pin lock. You can first use a torque wrench (Tension Wrench) to apply a rotating torque to the lock core, and then use a needle-shaped lock pick (Lock Pick) to lock the lock. Push the spring or marble upward one by one until all are aligned with the intercept point. Usually the marbles in the lock cylinder will not be completely in line. Under torsion, only one of them bears the most force against the lock cylinder. When this marble is pushed to a suitable height, the lock cylinder will turn a little bit more until it is pinned by another marble. When all the marbles are aligned in height, the torque wrench can open the lock. Sometimes the lock opener will first use the lock opener to pull out the lock quickly and vigorously to push the marbles upward; in this way, some of the marbles may be automatically pushed to the appropriate height from time to time to reduce the unlocking time.
Some simple padlocks only have two to three marbles, and the lock cylinder can be opened only by turning 1/8 of a turn. Experienced locksmiths do not need a torque wrench and unlocker, just use a safety pin to open it. However, some well-structured pin locks have various special devices that make it difficult for the lock opener to push the pin to the correct height.
In short, the key pushes all the working magnetic ball marbles and then rotates to unlock. Disadvantages: easy to make a master key to unlock. The risk of “key hitting” is a cause for concern. The main reason is that it uses the principle of tumbler locks to unlock the lock. It does not require the assistance of external intrusion tools. Even if ordinary people don’t understand the principle of tumbler locks, they can still lock the locks as long as they have a “key hitting”. Open. However, the marbles and keyholes of different locks are different. Therefore, in theory, a striker can generally only open a specified style of lock. This has made the outside world particularly concerned about whether these keys can be easily purchased in the private sector. In principle, as long as you have a key-matching machine and know the distribution of marble locks, you can grind the same keys, and there are also some styles of hammers sold online.


How to pick a pinball machine lock

Williams pinball machine keys

Pinball machine locks

How to open a pinball machine

Share on facebook
Share on twitter
Share on linkedin