Patent ID: 7266980
Filing Date: 2007-09-11
Classification: E05B,Y10T

Abstract:
1. A complex suitcase lock installed in a suitcase having two hooks, the complex suitcase lock comprising: a housing having two locating holes for receiving the hooks of the suitcase; a lock unit including a casing mounted in the housing, a pin tumbler lock mounted in the casing, and a combination lock mounted in the casing; wherein the pin tumbler lock includes a plug rotatable between a locking position and an unlocking position; wherein the combination lock includes a plurality of numbered rotatable wheels and a moveable plate movable between a first position and a second position by the control of the numbered rotatable wheels or the plug selectively; two retaining units each including a retaining cover pivoted to the housing and provided with a hook-engaging member engageable with one of the hooks of the suitcase, a push block movably mounted in the retaining cover, and a spring member connected between the retaining cover and the push block; and two linking units movably mounted in the housing, said linking units each including a first link having a first end stopped against the push block of one of the retaining units and a second end, a second link a first end coupled to the second end of the first link and a second end, a third link having a first end coupled to the second end of the second link and a second end stoppable at the moveable plate of the lock unit, and a spring member supported between the first end of the first link and the housing; wherein when the plug of the pin tumbler lock is turned to the unlocking position, the moveable plate is moved to the first position for allowing the push blocks of the retaining units to be pushed by the user to bias the retaining covers relative to the housing and to further disengage the hook-engaging members from the hooks of the suitcase such that the suitcase is openable; when the plug of the pin tumbler lock is turned to the locking position, the moveable plate is moved to the second position and stopped against the second ends of the third links of the linking units, thereby holding the retaining covers of the retaining units in the housing and keeping the hook-engaging members of the retaining units in engagement with the hooks of said suitcase.