| 摘要 |
A display case security apparatus comprises a housing, a plurality of platfo rm guide tracks, a platform, an elevating mechanism, and a closure. The housing includes a lowe r storage section and an upper display section disposed above the storage section. The storage sectio n has an opaque exterior wall and then display section has an exterior wall which is at least partial ly transparent. The platform guide tracks are disposed on the interior of the housing. The platform is disposed within the housing and includes a generally horizontal portion for supporting articles to be displayed. The platform is selectively movable between a first position, wherein any articles supported on the platform are displayed in the display section of the housing, and second position, wherei n any articles supported on the platform are stored in the storage section of the housing. The platfo rm interfits with the platform l~uide tracks so as to constrain the movement of the platform to vertical translation only. The elevating mechanism is mounted within the storage section and connected to the platfor m. The elevating mechanism includes a rotatable crankshaft and at least one pair of links. Th e first link of each pair of links has a first end which engages the crankshaft so as to rotate with crankshaft and a second endwhich is pivotally connected to a first end of the second link of each pair of links. Each of the second links has ~second end which is pivotally connected to the platform, whereby the platfo rm moves between the first position and the second position when the crankshaft rotates. The closure is selectively interposed between the display section and the storage section when the platform is in the second position whereby the platform and any articles supported thereon are enclosed within the storage section of the housing.
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