Key Takeaways
Most combination lock use awheel pack ; a hardening of wheels that exploit together to ' have it off ' the combination . All wheel pack are all designed around the same rule .
The typical combination lock has acombination dialthat is attached to aspindle . Inside the lock , the spindle runs through several wheel and adrive Cam River .
The number of wheels in a wheel mob is set by how many numbers are in the combination - one bicycle for each number . When you turn the telephone dial , the spindle turns the drive cam . seize to the parkway River Cam is adrive bowling pin . As the cam turns , the driving stick finally make contact with a humble tab on the neighboring wheel called thewheel rainfly .
Each wheel has a bicycle fly ball on each of its side . The drive pin spins the first bike until it makes contact with the wheel side by side to it . This continues until all the wheels are spinning . This is known aspicking up the wheels . Each steering wheel on the spike has a mountain pass sheer into it . When the correct combining is dialed , all the wheels and their notches line up utterly .
The fence is a small alloy bar impound to a lever tumbler . The fence forbid the dependable door from being opened without the combination being dial . It does this by resting on the wheel and blocking the path of the bolt that secures the good doorway .
When all the wheels line up , their notch align to form a gap . In a padlock , this break allow the hasp of the lock to issue . In a dependable , there is a piece of music phone thefenceresting just above the wheels . The fence fall into this crack under the force of its own weight . With the fence gone , the deadbolt can slither freely by and the safe can be open up .
When all the wheels in the wheel pack are in the correct
position, their notches align to form a gap. Under the force
of its own weight, the fence falls into the gap allowing
the safe to be opened.
The bicycle pack design has been used for almost 100 years .
