Combination key lock box with anti-pick mechanism

摘要

A combination key lock box comprising a body housing has a storage compartment which has holes to receive the toe of a shackle and the heel of the shackle. The heel or long-leg of the shackle remains inside of the body housing and the toe or short-leg can be moved away from the body to a lock releasing position. The shackle can be released from the body from the locked position to the open position by pushing down on the shackle to turn the dials to a correct combination. The heel of the shackle engages with the hole of the storage compartment cover to prevent the storage compartment from unlocking until the shackle has been released.

主权项

1. A combination lock box comprising:
a shackle comprising:
a first leg comprising a first protrusion and a plurality of second protrusions, anda second leg, a body housing having a first hole formed therein that is configured to receive the first leg of the shackle and a second hole formed therein that is configured to receive the second leg of the shackle; a storage compartment comprising a cover; a plurality of dials, each dial comprising a plurality of teeth; and a plurality of clutches, each clutch comprising:
an extended fin configured to engage the plurality of teeth of a respective dial,a lock-opening notch configured to allow one of the plurality of second protrusions to pass through the notch when each of the plurality of second protrusions are aligned with the lock opening notch of each of the plurality of clutches, anda plurality of faulty notches, each configured to block the movement of one of the plurality of second protrusions when the one of the plurality of second protrusions is engaged with the faulty notch; wherein when the shackle is in a locked position, the plurality of clutches are configured to engage the first leg of the shackle to prevent the rotation of each of the plurality of dials; and wherein the shackle in the locked position is configured for downward movement towards the body housing and wherein the downward movement causes the plurality of second protrusions to disengage from any engagement with the plurality of faulty notches to allow rotation of the plurality of dials.