Collapsible keyboard

• US 6,174,097 B1
• Filed: 09/21/1999
• Issued: 01/16/2001
• Est. Priority Date: 03/21/1997
• Status: Expired due to Term

• Current Assignee: Hanger Solutions, LLC (IP Investments Group LLC)
• Original Assignee: Simon Richard Daniel
• Inventors: Daniel, Simon Richard
• Primary Examiner(s): Hilten, John S.
• Assistant Examiner(s): Nguyen, Anthony H.
• Application Number:
  US09/400,569
• Time in Patent Office: 483 Days
• Field of Search: 400/472, 400/492, 400/473, 400/478, 345/168, 345/169, 341/22, 341/21, 361/680, 235/145.A, 235/145.R, 235/146, 200/5.R, 200/52.R, 248/118.5, 248/118.3, 248/118.1, 248/118
• US Class Current: 400/472
• CPC Class Codes: G06F 3/0221 Arrangements for reducing keyboard size for transport or storage, e.g. foldable keyboards, keyboards with collapsible keys G06F3/0216 takes precedence; for keyboards integrated in a laptop computer G06F1/1666
• CPC Class Codes: G10H 2220/256 foldable or rollable, e.g. for transport
• CPC Class Codes: H01H 2223/05 composed of hingedly connected sections
• CPC Class Codes: H01H 2223/052 reductible in size, e.g. for transportation

Abstract

A collapsible keyboard that is collapsible between a deployed configuration in which the keyboard is generally planar and a collapsed configuration, the keyboard being foldable about three substantially parallel axes between the deployed and collapsed configurations, the keyboard having four rigid subframes for supporting keys, each subframe being pivotally connected at a folding axis to an adjacent subframe. The keyboard preferably has support frames supporting keys thereon. The keys are slidable and are connected by flexible connectors that span the axes. The keyboard can be locked in either the collapsed or deployed configuration and can be combined with a remote communication unit.

Claims

1. A collapsible keyboard comprising:

four substantially rigid subframes arrayed in a row, each pair of adjacent subframes being relatively pivotably connected together along a folding axis, said folding axes being substantially mutually parallel; and

a plurality of keys mounted on said subframes;

the keyboard being foldable about said folding axes between a deployed configuration in which the keyboard is generally planar and a collapsed configuration.

2. The keyboard according to claim 1, wherein the keyboard is foldable in opposite directions on adjacent folding axes.

3. The keyboard according to claim 1, wherein at least some of said keys are slidable relative to a subframe in a direction transverse to said folding axes.

4. The keyboard according to claim 3, further including at least one flexible connector connecting at least some of said slidable keys to other keys across one of said folding axes such that said at least some of said slidable keys slide relative to said subframe as the keyboard is folded into the collapsed configuration.

5. The keyboard according to claim 3 wherein at least some of said slidable keys are shifted into their deployed position when the keyboard is unfolded to the deployed configuration.

6. The keyboard according to claim 1, further comprising a support structure for said keys.

7. The keyboard according to claim 6 wherein said support structure comprises a matrix of cells, each cell accommodating a respective key.

8. The keyboard according to claim 7 wherein at least some of said keys are depressed when the keyboard is in its collapsed configuration and said support structure encases each depressed key when the keyboard is in the collapsed configuration.

9. The keyboard according to claim 1, further comprising a support structure for said keys, wherein at least some of said keys are mounted so as to be slidable relative to a subframe in a direction transverse to said folding axes, and wherein portions of the support structure are slidable with said slidable keys.

10. The keyboard according to claim 1, further comprising a lock for maintaining the keyboard in its deployed configuration.

11. The keyboard according to claim 10 wherein said lock comprises locking elements that are biased into recesses in said subframes in the keyboard.

12. The keyboard according to claim 10 wherein said lock includes a button and is releasable by operation of said button.

13. The keyboard according to claim 1, further comprising a lock for locking the keyboard in its collapsed configuration.