Computer having ejectable keyboard ejected by damping device

• US 5,287,245 A
• Filed: 11/13/1992
• Issued: 02/15/1994
• Est. Priority Date: 11/13/1992
• Status: Expired due to Term

• Current Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Original Assignee: International Business Machines Corporation
• Inventors: Horikoshi, Seita, Kurihara, Mikio, Naitoh, Atsuhisa, Sapper, Richard F., Lucente, Samuel A. M., Yoshihara, Kazuhide
• Primary Examiner(s): Tolin, Gerald P.
• Assistant Examiner(s): Phillips, Michael W.
• Application Number:
  US07/975,845
• Time in Patent Office: 459 Days
• Field of Search: 312/223.2, 312/223.3, 312/208.1, 312/333, 312/319.1, 292/175, 292/181, 292/177, 292/163, 292/DIG. 17, 400/682, 340/711, 361/344, 361/380, 361/390-395, 361/399, 361/679-687, 361/724-727, 200/50 A, 200/50 AA, 364/708, 364/708.1
• US Class Current: 361/679.17
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: G06F 1/1656 Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203
• CPC Class Codes: G06F 1/1669 Detachable keyboards
• CPC Class Codes: Y10T 292/0969 Spring projected
• CPC Class Codes: Y10T 292/1003 Swinging catch

Abstract

A keyboard storage and retrieval system for a computer is provided, the system comprising a flat panel display, an enclosure, a removable keyboard slidably attached to the enclosure, and a latching system for lockingly securing the removable keyboard to the enclosure. The latching system includes a manually operated damping device for ejecting the removable keyboard from the enclosure and a manually operated mechanical latching device for securing the removable keyboard to the enclosure. The flat panel display is movable to a closed position on the enclosure to actuate the latching device to prevent the damping device from ejecting the removable keyboard from the enclosure.

Claims

1. A laptop computer having an ejectable keyboard, comprising:

a laptop enclosure;

an ejectable keyboard slidably contained within said laptop enclosure; and

a latching system for lockingly securing said ejectable keyboard within said laptop enclosure, said latching system including a damping device for ejecting said ejectable keyboard from within said enclosure and a mechanical latching device for securing said ejectable keyboard within said enclosure.

2. The system of claim 1, wherein said damping device for ejecting said ejectable keyboard from said enclosure and said mechanical latching device for securing said ejectable keyboard within said enclosure are manually operated.

3. The system of claim 2, wherein said laptop computer includes a flat panel display which is movable to a closed position on said enclosure to actuate said latching device to prevent said damping device from ejecting said ejectable keyboard from said enclosure.

4. The system of claim 3, wherein handwritten messages may be written onto said flat panel display via a stylus and recognized by said laptop computer.

5. The system of claim 3, wherein said flat panel display is hingedly attached to said enclosure.

6. The system of claim 3, wherein said ejectable keyboard is attached to the laptop computer via a cable.

7. The system of claim 3, wherein said wherein said ejectable keyboard is completely detachable from said enclosure, using infrared signals to communicate with the laptop computer.

8. The system of claim 2, wherein said latching device includes (i) a latching device housing which is fixedly attached to said enclosure;

(ii) a plunger which is slidable within said latching device housing; and

(iii) a locking pin which is slidable within said plunger to engage a corresponding recess in said ejectable keyboard to secure said keyboard within said enclosure.

9. The system of claim 8, wherein said plunger is biased against said latching device housing by a spring, and said locking pin is biased against said plunger by a spring.

10. A computer having an ejectable keyboard, comprising:

an enclosure;

an ejectable keyboard slidably contained within said enclosure; and

a latching system for lockingly securing said ejectable keyboard within said enclosure, said latching system comprising a manually operated damping device for ejecting said ejectable keyboard from within said enclosure and a manually operated mechanical latching device for securing said ejectable keyboard within said enclosure.

11. The system of claim 10, wherein said computer includes a flat panel display which is movable to a closed position on said enclosure to actuate said latching device to prevent said damping device from ejecting said ejectable keyboard from said enclosure.

12. The system of claim 11, wherein handwritten messages may be written onto said flat panel display via a stylus and recognized by said computer.

13. The system of claim 11, wherein said flat panel display is hingedly attached to said enclosure.

14. The system of claim 11, wherein said ejectable keyboard is attached to the computer via a cable.

15. The system of claim 11, wherein said wherein said ejectable keyboard is completely detachable from said enclosure, using infrared signals to communicate with the computer.

16. The system of claim 10, wherein said latching device includes (i) a latching device housing which is fixedly attached to said enclosure;

(ii) a plunger which is slidable within said latching device housing; and

(iii) a locking pin which is slidable within said plunger to engage a corresponding recess in said ejectable keyboard to secure said keyboard to said enclosure.

17. The system of claim 16, wherein said plunger is biased against said latching device housing by a spring, and said locking pin is biased against said plunger by a spring.

18. A pen-based computer having an ejectable keyboard, comprising:

an enclosure;

a stylus;

a flat panel display onto which handwritten information is written and recognized by the computer;

an ejectable keyboard slidably contained within said enclosure; and

a latching system for lockingly securing said ejectable keyboard to said enclosure, said latching system including a damping device for ejecting said ejectable keyboard from within said enclosure and a mechanical latching device for securing said ejectable keyboard within said enclosure.

19. The system of claim 18, wherein said damping device for ejecting said ejectable keyboard from said enclosure and said mechanical latching device for securing said ejectable keyboard within said enclosure are manually operated.

20. The system of claim 19, wherein said flat panel display is movable to a closed position on said enclosure to actuate said latching device to prevent said damping device from ejecting said ejectable keyboard from said enclosure.

21. The system of claim 20, wherein said ejectable keyboard is attached to the computer via a cable.

22. The system of claim 20, wherein said wherein said ejectable keyboard is completely detachable from said enclosure, using infrared signals to communicate with the computer.

23. The system of claim 19, wherein said flat panel display is hingedly attached to said enclosure.

24. The system of claim 19, wherein said latching device includes (i) a latching device housing which is fixedly attached to said enclosure;

(ii) a plunger which is slidable within said latching device housing; and

(iii) a locking pin which is slidable within said plunger to engage a corresponding recess in said ejectable keyboard to secure said keyboard to said enclosure.

25. The system of claim 24, wherein said plunger is biased against said latching device housed by a spring, and said locking pin is biased against said plunger by a spring.