Keyboard for portable information equipment

Patent metadata

Field	Value
Publication number	US-2016334835-A1
Application number	US-201615153497-A
Country	US
Kind code	A1
Filing date	May 12, 2016
Priority date	May 12, 2015
Publication date	Nov 17, 2016
Grant date	—

Abstract

A keyboard device for a portable computer is disclosed. The portable computer includes a main body chassis and a display chassis. The main body chassis contains the keyboard device having multiple keycaps elastically supported to be moved up and down. Coupled to the main body chassis via a hinge, the display chassis contains a display. The main body chassis also includes a key depressing mechanism having a rotating shaft member provided along each of the keycaps and a pressing piece projecting from the outer circumferential surface of the rotating shaft member to the side of the keycap to allow a receiving part provided in the keycap to be depressed downward. The rotating shaft member rotates about the axis to cause the pressing piece to push down the receiving part and, in turn, pushing down and keeping the keycap in a depressed position.

First claim

What is claimed is:

1 . A portable information equipment comprising:
a keyboard device having a plurality of keycaps elastically supported to be moved up and down; a main body chassis containing said keyboard device; a display chassis coupled to said main body via a hinge; a key depressing mechanism provided in said main body chassis, wherein said key depressing mechanism has a rotating shaft member provided along each of said keycaps; and a pressing piece projecting from an outer circumferential surface of said rotating shaft member to a side of one of said keycaps to be able to depress downward a receiving part provided in said one keycap, wherein said rotating shaft member rotates about an axis to cause said pressing piece to push down said receiving part and, in turn, pushing down and keeping said one keycap in a depressed position.

2 . The portable information equipment of claim 1 , wherein when said receiving part is pushed down by said pressing piece, said one keycap is placed in said depressed position where a top face of said one keycap is flush with or lower than a top face of said keyboard device.

3 . The portable information equipment of claim 1 , wherein when depressing action of said pressing piece on said receiving part is released to cause said one keycap to return to a use position to be moved up and down.

4 . The portable information equipment of claim 1 , wherein a plurality of said rotating shaft members are provided along a front side of said keycaps arranged side by side in a right-left direction so that said rotating shaft members will be arranged side by side in a front-rear direction.

5 . The portable information equipment of claim 4 , wherein said key depressing mechanism has a time difference structure in which rotation timing of each row or every two or more rows of said rotating shaft members arranged side by side in said front-rear direction is made different to change timing of pushing down each row or every two or more rows of said keycaps in said front-rear direction.

6 . The portable information equipment of claim 1 , further comprising a link mechanism for rotating said rotating shaft member in conjunction with a rotating operation of said hinge when said display chassis is moved with respect to said main body chassis.

7 . The portable information equipment of claim 4 , further comprising
a link mechanism for rotating said rotating shaft member in conjunction with a rotating operation of said hinge when said display chassis is moved with respect to said main body chassis, wherein said link mechanism includes a slide member in which a plurality of slits are so provided that an end of each rotating shaft member is engaged in each of said slits to move in said front-rear direction in conjunction with said rotating operation of said hinge in order to rotate said rotating shaft member.

8 . The portable information equipment of claim 1 , wherein
said hinge is to couple said main body chassis and said display chassis turnably from a 0 degree position, where front faces of said main body chassis and said display chassis face each other, to a 360 degree position, where back faces of said main body chassis and said display chassis face each other, via a 180 degree position, where said front faces of said main body chassis and said display chassis are parallel to each other while facing in the same direction; and said keycap is kept in said depressed position at said 0 degree position and said 360 degree position, and in a predetermined angle range set between said 0 degree position and said 180 degree position, said depressing action of said pressing piece on said receiving part is released to cause said keycap to return to an up position and hence to be placed in a use position to be moved up and down.

9 . The portable information equipment of claim 8 , wherein
said hinge is to couple said main body chassis and said display chassis turnably from a 0 degree position, where front faces of said main body chassis and said display chassis face each other, to at least a 90 degree position where said main body chassis and said display chassis are orthogonal to each other; and said keycap is kept in said depressed position at said 0 degree position, and at a predetermined angle position set between said 0 degree position and said 90 degree position, said depressing action of said pressing piece on said receiving part is released to cause the keycap to return to an up position and hence to be placed in a use position to be moved up and down.

10 . A keyboard device comprising:
a plurality of keycaps elastically supported to be moved up and down; a key depressing mechanism having a rotating shaft member provided along each of said keycaps; and a pressing piece projecting from an outer circumferential surface of said rotating shaft member to a side of one of said keycaps to be able to depress downward a receiving part provided in said one keycap, wherein said rotating shaft member rotates about an axis to cause said pressing piece to push down said receiving part and, in turn, pushing down and keeping said one keycap in a depressed position.

Assignees

• Lenovo Singapore Pte Ltd

Inventors

• Tamura Fumio
• Agata Hiroaki
• Fujino Takane
• Shinohara Eiji

Classifications

• G06F1/1662

  Details related to the integrated keyboard · CPC title

• H01H13/10

  Bases; Stationary contacts mounted thereon · CPC title

• G06F1/1615 Primary

  with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function (constructional details of portable telephones comprising a plurality of mechanically joined movable body parts H04M1/0206) · CPC title

• H01H13/705 Primary

  characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys · CPC title

• H01H13/86

  characterised by the casing, e.g. sealed casings or casings reducible in size · CPC title