MECHANICAL COMBINATION LOCK Russian patent published in 1997 - IPC

FIELD: lock production. SUBSTANCE: mechanical combination lock has a body. A cross bar is installed in the body between guide sleeves. There is a mean to move and lock the cross bar with swivel handles installed on a pivot. Combination lock includes working barrel with analyzer in the form of a little ball coming in contact with cross bar groove, and locking out mechanism. Working barrel has radial grooves. One groove is deeper to interact with the ball and is provided with external combination handle and internal combination disc. As this takes place locking out mechanism is made in the form of a spring-loaded plank placed in the body. External combination handle is installed on the plank. Combination handle is installed so as to be revolved and may be coupled to the barrel through intermediate roller. External swivel handle is coupled to the cross bar sleeve mean pivot, and shaped plank has a button to control the sleeve. The button is installed coaxially to the swivel handles. EFFECT: higher efficiency, reliability. 5 cl, 2 dwg