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Method of mounting and deploying a lightpath diagnostics card in a computer system. Disclosure Number: IPCOM000028743D
Original Publication Date: 2004-May-28
Included in the Prior Art Database: 2004-May-28
Document File: 6 page(s) / 2M

Publishing Venue



In computer systems that use a lightpath diagnostics display card it is necessary to allow easy access to the card so that any LEDs that indicate where any problem lies may be seen and acted apon. Previous solutions have included swing or slide out units but all have required the customer to operate a catch and then pull the display out so that it can be seen. It would be better if the display could be deployed with a single action. My invention utilises industry standard components to create a display unit that in deployed by a single push to its front face. It then slides out in a powered, smooth fashion before swinging down to a position where it is easy to read.

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Page 1 of 6

Method of mounting and deploying a lightpath diagnostics card in a computer system.

     The invention consists of a Lightpath card mounted on pivots to a carrier which is retained inside a computer chassis buy the use of guides and catches. The assembly can slide in and out of the system on those guides and a tension spring is used so that the at rest position is with the display deployed. When the display is pushed in, a gear damper controls the speed of insertion and a push push type latch retains the assembly in the inner position when it is pushed fully home. To deploy the display again the front face of the unit is depressed which in turn moves the whole display back and operates the push push catch, releasing it. The tension spring then will drive the unit back out of the system. The speed that which the display is deployed is controlled by the gear damper unit and this can be varied by choosing an appropriate damper so that a smooth, silent action results. Near the end of the displays travel the weight of the display will cause it to swing down to its operating position, again the damper controls the rate at which it can swing down.

Fig 1 shows how the display would be situated in a media tray such as might be used in a typical computer system. All that is visible of the display on the front face of the bezel is a translucent area where the initial fault indication would be displayed.


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Fig 2 shows how a pair of guides (made from a suitable material such as nylon), the rotary damper unit and the Push-Push latch are mounted into the chassis. A stop feature is located at the near end of each guide and a hook for one end of the tension spring.


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Page 3 of 6

Fig 3 shows the carrier molding. It has catches on either side that will engage with the stops shown in fig 2, guide features that will fit smoothly into the guides in fig 2, a hook at the rear for retaining the other end of the tension spring. Further detail of the Carrier can be seen in fig 4


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where the toothed rack (to engage with the...