US Patent 9551544 Crossbow lock mechanism

An improved crossbow lock mechanism includes the trigger housing, the seer lever, the seer lock lever, the latch, the trigger and an auto safety. The auto safety preferably includes a safety block, a safety lever arm and a safety lever arm lock. The safety lever arm lock is pivotally retained on one end of the safety lever arm with a safety arm lock pin. A finger engagement portion extends from one end of the safety lever arm lock and a stop portion extends from an opposing end thereof. A hand grip extends from the housing. The safety lever arm is pivotally retained in the hand grip with a safety lever arm pivot pin. A safety block actuator pocket is formed in a bottom of the safety block to receive the other end of the safety lever arm. A safety block spring biases the safety block away from the trigger lever.