Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
1999-10-27
2001-05-29
Picard, Leo P. (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S752000, C361S759000, C361S748000, C361S747000, C361S736000, C361S728000
Reexamination Certificate
active
06239978
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to a device for supporting a circuit board, and in particular to a device for releasably supporting a main board in a computer enclosure.
2. The Prior Art
A computer enclosure comprises a chassis in which a main board support panel is fixed. Conventionally, the support panel is fixed to the chassis by bolts that complicates the assembly operation of the computer. Removable support panels are also available in the market for overcoming the above problem. An example is disclosed in Taiwan Patent Application No. 84201628 in which spring-based locking devices are used to secure the support panel. Such spring-based locking devices have a complicated structure and thus high costs. Another example is disclosed in Taiwan Patent Application No. 84214655 in which V-shaped resilient members are used to secure the support panel. The V-shaped members, however, are structurally weak and incapable to soundly secure the support panel.
Taiwan Patent Application Nos. 85200273 and 86209311 disclose circuit board support devices movably mounted to and supported by rails formed in a computer enclosure. The rails suffer from mechanical tolerance that causes the support device not to be firmly secured or incapability to be used with different designs of computer enclosures.
It is thus desired to provide a circuit board support that overcomes the above problems.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a circuit board support for removably mounting a computer main board in a computer enclosure;
Another object of the present invention is to provide a circuit board support for readily and efficiently mounting a circuit board in an enclosure.
A further object of the present invention is to provide a circuit board support, which is secured by means of spring elements for enhancing the operation thereof.
A further objection of the present invention is to provide a circuit board support having a simple structure.
To achieve the above objects, a circuit board support in accordance with the present invention comprises upper and lower rails respectively mounted to top and bottom sides of a computer enclosure. Each rail defines a plurality of guiding slots. A support panel to which a circuit board is attached forms projections on top and bottom edges thereof for being movably received and guided by the guiding slots of the rails. A locking member is fixed to each rail and has a resilient front section defining a locking hole. The resilient section partially overlaps the support panel whereby when the support panel is moved with respect to the rails by having the projections moving along and guided by the guiding slots to a predetermined position, the locking hole is brought into engagement with a corresponding pin formed on the support panel by elastically deforming the resilient section of the locking member. The resiliency of the resilient section securely maintains the engagement between the locking hole and the pin while allowing quick and ready disengagement of the locking member from the pin for removing the support panel.
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IBM Technical Disclosure Bullitin, NN87,013,692 Jan. 1987, US.
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Picard Leo P.
Vortman Anatoly
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