Supports: cabinet structure – Gang-bar type locking or latching means – Concealed
Reexamination Certificate
2002-07-17
2003-06-03
Chan, Korie (Department: 3632)
Supports: cabinet structure
Gang-bar type locking or latching means
Concealed
C312S218000, C292SDIG001
Reexamination Certificate
active
06572203
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention is related to a cabinet drawer locking device.
A conventional file or tool cabinet is a substantially rectangular case body with six faces. The case body is formed by several panels defining a space therebetween. Several drawers are horizontally disposed in the space layer by layer for placing documents or tools therein. In order to prevent the documents or tools from being stolen or prevent the drawers from dropping out due to shock or inclination of the ground, the file or tool cabinet is equipped with a locking device for locking the drawers.
In order to lock the respective drawers at one time, a conventional device or such as U. S. Pat. No. 4,966,422 disclose a locking device including an up and down movable latch body disposed on the panels of the case body. Each drawer has a hook section corresponding to a latch hole or a latch section of the latch body. The latch body is drivingly connected with a link. One end of the link extends out of the case body to connect with a rotary mechanism such as a key unit. By means of turning the rotary mechanism, the link is driven to drive the latch body to reciprocally move. Accordingly, the hook section can be latched with the latch hole or latch section to lock the respective drawers at one time.
When locking the drawers, the drawers must be totally pushed into the case body so as to locate the hook section at a position where the hook section is latched with the latch hole or latch section. However, it often takes place that after locking the drawers, a user finds that one or some of the drawers are not totally pushed in and are not locked. Under such circumstance, the user must unlock the drawers and then totally push in the drawers and then again lock the drawers. This makes it inconvenient and troublesome to perform the locking operation for the drawers.
The above shortcomings have been overcome by U.S. Pat. No. 6,347,848B1. This Patent includes a latch body upper end of which is formed with a slot having a predetermined length, a link having a bending section and a latch plate disposed on the drawer and having an inclined stop section. In the case that the latch body is positioned in a locking position for locking the drawers, while some drawers are not totally pushed in and locked, a user only needs to further force and push in the drawers. At this time, the latch body will ascend and then fall down to lock all the drawers. However, the above Patent has complicated structure. In addition, it is troublesome to assemble the link with the latch body and it is relatively laborious to drive the latch body.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide a cabinet drawer locking device including simpler components which can be more easily assembled. In the case that the locking device is positioned in the locking position, while some drawers are not totally pushed in and locked, a user only needs to further force and push in the drawers to conveniently lock all the drawers.
According to the above object, the cabinet drawer locking device of the present invention includes a cabinet body, at least one drawer disposed in the cabinet body, a slide seat arranged on the cabinet body, an engaging body slidably disposed on the slides seat, a latch plate mounted on the drawer and a damper unit. The engaging body is formed with an engaging hole corresponding to the latch plate. The damper unit includes a shifting section, a forcing section, a first slide section and a second slide section.
REFERENCES:
patent: 1552511 (1925-09-01), Secoy
patent: 2719770 (1955-10-01), Roberts
patent: 5605388 (1997-02-01), Laakso
patent: 5862689 (1999-01-01), Wen
patent: 6347848 (2002-02-01), Cho
patent: 3431386 (1986-03-01), None
patent: 3732737 (1988-12-01), None
Chan Korie
E-Make Co., Ltd.
Troxell Law Office PLLC
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