| 摘要 |
A security lock having a housing and a cam. The housing includes an indent with a pair of guide portions. The cam is positioned within the indent and includes an axle port. A shaft of an axle is adapted to be inserted into the axle port so that the cam and the axle are rotatable together. The cam includes a sweep arm and a channel disposed on an upper surface of the sweep arm. The sweep arm has an outer wall that is either elongate-shaped or semicircular-shaped. The channel has a semi-circular-shaped inner wall and an elongate-shaped outer wall. Upon rotation of the axle, the cam rotates about the guide portions into a locked posture in the housing. The elongate-shaped outer wall of the channel allows the security lock to be self-locating when the housing and a keeper are misaligned when installed, respectively, on opposing window sashes.
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