High reliability gate lock for exterior use
An improved gate lock provides for easy engagement and allows for a high degree of variability of the orientation and position of the mating portions of the lock. The lock includes a lock pin movably retained in a base. The pin coordinates with, and engages, a latch in a separate receiver to provide a physical lock. The latch is spring-mounted in a locked position to allow it to slide laterally within the receiver to receive and capture the pin during the locking function. The receiver includes a pin slot or opening having an angled surface for directing the pin into the latch for easier movement and engagement. The latch has an angled or curved strike surface on which the pin slides during locking. A solenoid is mounted to the receiver and is connected to the latch to provide for automatic withdrawal of the latch for unlocking functions.
1 . A gate lock providing enhanced accommodation for variation in lock orientation and high reliability, comprising:
a rigid pin having a longitudinal axis;
means of securing the pin to a working surface while allowing movement of the pin in a first direction perpendicular to the longitudinal axis;
a hollow lock receiver body having a centerline and having a slot perpendicular to the centerline, the slot configured to receive the pin transversely;
a latch slidably disposed within the receiver body and having a bearing surface configured to contact the receiver body; the latch also having a latch arm extending across the slot to close the slot in a locked condition, the latch arm configured to be forced away from the slot by a pin entering the slot;
a spring biasing the latch into the locked condition;
unlocking means for moving the latch within the receiver body to withdraw the latch arm from the slot to open the slot in an unlocked condition;
such that the pin and receiver may be locked together by moving the pin transversely into the slot while allowing the pin to move parallel to the receiver centerline, and the pin and receiver may be unlocked and separated by moving the latch to withdraw the latch arm from the slot.
2 . A gate lock according to claim 1 , and wherein:
the slot includes a guide surface having a guide surface included angle with respect to the centerline, the guide surface included angle less than 90 degrees.
3 . A gate lock according to claim 2 , and wherein:
the guide surface included angle is 45 degrees; and
the pin has a diameter and the slot has a maximum width dimension of 2.5 times the pin diameter.
4 . A gate lock according to claim 1 , and wherein:
the latch arm has a strike surface configured to receive a pin entering the slot, and the strike surface having a strike surface included angle of 45 degrees with respect to the centerline.
5 . A gate lock according to claim 4 , and wherein:
the strike surface is curved.
6 . A gate lock according to claim 1 , and wherein:
the securing means comprises an interconnected lower and upper flange; the lower and upper flange both having a respective pin slot configured to receive the pin, and the pin slot has a length equal to twice the pin diameter.
7 . A gate lock according to claim 1 , and wherein:
the unlocking means comprises an electrically powered solenoid.
8 . A gate lock according to claim 1 , and wherein:
the receiver body comprises a hollow tube having rectangular cross-section.
9 . A gate lock providing enhanced accommodation for variation in lock orientation and high reliability, comprising:
a pin having a diameter;
a pin mount having an upper and lower flange; both flanges having a transverse pin slot having a length dimension equal to 1.5 times the pin diameter, the pin moveably secured in the upper and lower flange slot;
a receiver body comprising a hollow tube having a rectangular cross-section and having a centerline and having a transverse slot, the transverse slot having a guide surface having an included angle with respect to the centerline, the guide surface included angle less than 90 degrees;
a latch slidably disposed within the receiver body, the latch comprising:
a rectangular base having a first and second mutually parallel opposing side,
a latch arm extending generally perpendicularly from the first side, and
a bearing surface on the second side, the bearing surface configured to contact the receiver body;
a spring biasing the latch into a locked condition wherein the latch arm crosses the transverse slot;
a solenoid secured in the receiver body and connected to the latch to withdraw the latch arm away from the transverse slot in an unlocked condition;
the latch arm having a strike surface parallel to the pin when the pin is transversely directed into the slot, the strike surface also having a strike surface included angle of 45 degrees with respect to the centerline.
10 . A gate lock according to claim 9 , and wherein:
the guide surface included angle is 45 degrees.
11 . A gate lock according to claim 9 , and wherein:
the slot has a maximum width equal 2.5 times the pin diameter.
12 . A gate lock according to claim 10 and further comprising:
a manual key operator configured to manually move the latch from the locked condition to the unlocked condition.