Patent ID: 7650769
Filing Date: 2010-01-26
Classification: E05B,Y10T

Abstract:
1. A lock device, comprising: a housing having a center through hole formed therein defining an inside wall of the housing, a center through hole engagement groove being disposed in the inside wall of the housing, a center through hole longitudinal groove being disposed in the inside wall and extending in a same direction as the center through hole, the center through hole longitudinal groove intersecting with the center through hole engagement groove; a core which engages the center through hole of the housing, a core engagement groove being disposed on the core and corresponding to the center through hole engagement groove, a core longitudinal groove corresponding to the center through hole longitudinal groove of the housing, a key hole being formed in a middle portion of the core, a pin hole being formed in an outer surface of the core and extending radially therein such that the pin hole extends into the key hole, the outer surface of the core being tapered at a first end portion of the core adjacent the core engagement groove; a fitting ring coupled to a first spring, the fitting ring and the first spring being positioned between the center through hole engagement groove and the core engagement groove such that the first spring is disposed in an inner portion of the core; a first tumbler pin disposed in the pin hole of the core; a step-shaped second tumbler pin coupled to a second spring, the second tumbler pin and the second spring being disposed on the inside wall of the housing; a compression rod having a first end portion for inserting into the center hole longitudinal groove and the core longitudinal groove, the first end portion of the compression rod having a sloped face, wherein the combined depth of the center through hole longitudinal groove and the core longitudinal groove is larger than the thickness of the compression rod.