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Locking hinge design

A technology of equipment and flanges, applied in the direction of electrical equipment shells/cabinets/drawers, closed casings, electrical components, etc., can solve problems such as unstable surface contact, hinge side flatness tolerance, etc.

Active Publication Date: 2009-11-18
CISCO TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hinged assembly avoids high friction and makes assembly simpler and more efficient; however, existing hinged chassis designs suffer from unstable surface contact between the upper and lower shells along the hinge side and uncontrollable hinge side flatness tolerances Impact

Method used

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  • Locking hinge design
  • Locking hinge design
  • Locking hinge design

Examples

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Embodiment Construction

[0020] The examples provided in this specification are not intended to limit the scope of the claims. The drawings mainly illustrate the features of the examples, where it should be understood and appreciated that like reference numerals are used to designate like elements.

[0021] A locking hinge design including two unique key features is described in the example embodiment. The first is an L-shaped flange on the upper shell, and the second is a vertical check plate on the lower shell. After the upper case is installed on the lower case, the non-return plate on the lower case blocks the L-shaped flange on the upper case. The upper shell no longer slides out from the lower shell due to the locking hinges, which allows reliable surface contact between the upper shell and the lower shell. This can also lead to improved assembly quality. In addition, the locking hinge design enables the chassis to comply with Federal Communications Commission (FCC) Class B standards.

[002...

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PUM

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Abstract

The invention provides a locking hinge design. In accordance with an example embodiment, there is disclosed herein an apparatus comprising a top case having a top surface and a side surface and a bottom case having a bottom surface and a side surface. The top case comprises a flange protruding from the side surface, the flange having at least one extended surface. The bottom case has an aperture having portions extending from the bottom surface to the side surface. The portion of the aperture extending along the bottom surface is configured to have sufficient width to allow the entire flange to pass through. The side surface of the bottom case has a vertical post such that the base section of the flange passes through the portion of the aperture on the side surface while vertical post retains the at least one extended surface.

Description

technical field [0001] The present invention generally relates to a hinge design for case assembly. Background technique [0002] Many hinge designs for electronic devices such as networking or wireless networking devices use a slide assembly: the upper case of the chassis slides over the lower case to close it. During sliding installation, the sum of EMI (EMI spoon) or EMI finger reeds may cause high friction during sliding installation. Such sliding installation is difficult and inefficient. In contrast to slide assembly, flip assembly is a design that uses a hinged structure: the upper shell is hinged to the lower shell on one side. Flip the upper shell over to close it. Hinged assembly avoids high friction and makes assembly simpler and more efficient; however, existing hinged chassis designs suffer from unstable surface contact between the upper and lower shells along the hinge side and uncontrollable hinge side flatness tolerances Impact. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/00
CPCH05K5/0008Y10T29/49826
Inventor 乔治·佑志·伊曾波强邱明建
Owner CISCO TECH INC