# US 2014/0151208 A1 · Simple assembly thin keyboard > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0151208 A1 - Document ID: US20140151208A1 - Status: Published application - Kind: A1 - Application number: 13/692,750 - Filed: 2012-12-03 - Published: 2014-06-05 - Earliest claimed: 2012-12-03 - Assignees: Zippy Technology Corp. - Applicants: Zippy Technology Corp. - Inventors: Chin-Wen CHOU - Web page: https://patentgrep.com/patent/US20140151208A1 ## CPC - H01H 13/7065: characterised by the mechanism between keys and layered keyboards - H01H 2221/036: Return force - H01H 2221/054: connected by flexible webs - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) ## Abstract A simple assembly thin keyboard includes at least one circuit board and a plurality of keycap assembly located on the circuit board and movable vertically to press the circuit board to generate keyboard command signals. The keycap assembly includes a plurality of first keycaps and second keycaps. Each first keycap abuts at least one second keycaps. The abutting first keycaps and second keycaps are interposed by a plurality of connection arms. Each connection arm includes at least one first connecting section connecting to the first keycap, at least one second connecting section connecting to the second keycap and an elastic section which bridges the first connecting section and second connecting section and contains at least one stress reversion spot. Through the connection arm bridged the first and second keycaps to substitute the conventional driven mechanism total thickness of the keyboard can be reduced, and assembly also is simpler. ## Claims ### Claim 1 A simple assembly thin keyboard, comprising at least one circuit board and a plurality of keycap assembly located on the circuit board and movable vertically to connect the circuit board to generate keyboard command signals, characterized in that the keycap assembly including: a plurality of first keycaps and second keycaps, each first keycap abutting at least one second keycap; and a plurality of connection arms located between the abutting first keycaps and second keycaps, each connection arm including at least one first connecting section connecting to the first keycaps, at least one second connecting section connecting to the second keycaps and an elastic section bridging the first connecting section and the second connecting section and containing at least one stress reversion spot. ### Claim 2 (depends on 1) The simple assembly thin keyboard of claim 1 further including a frame which contains at least one housing zone to hold the keycap assembly, the first keycaps or the second keycaps abutting the frame being bridged by the connection arms therebetween. ### Claim 3 (depends on 2) The simple assembly thin keyboard of claim 2, wherein the keycap assembly is held and arranged horizontally or vertically in the housing zone, the keycap assembly having a support rib located between the abutting housing zones. ### Claim 4 (depends on 3) The simple assembly thin keyboard of claim 3, wherein the frame and the support rib include a retaining portion abutting the circumference of the first keycaps and the second keycaps to form a retaining zone. ### Claim 5 (depends on 4) The simple assembly thin keyboard of claim 4, wherein the retaining portion is located correspondingly to a side corner position of the first keycaps and the second keycaps. ### Claim 6 (depends on 4) The simple assembly thin keyboard of claim 4, wherein the retaining portion is located correspondingly to a lateral side of the first keycaps and the second keycaps where no connection arm is located. ### Claim 7 (depends on 5) The simple assembly thin keyboard of claim 5, wherein the retaining portion is located correspondingly to a lateral side of the first keycaps and the second keycaps where no connection arm is located. ### Claim 8 (depends on 2) The simple assembly thin keyboard of claim 2, wherein the frame includes a support arm between the first keycaps and the second keycaps and connecting to the elastic section to provide ancillary support. ### Claim 9 (depends on 1) The simple assembly thin keyboard of claim 1, wherein each first keycap and second keycap includes a depressible first upper surface and a lower surface, the lower surface including a contact portion extended towards the circuit board. ### Claim 10 (depends on 1) The simple assembly thin keyboard of claim 1, wherein the first keycaps or the second keycaps and the circuit board are interposed by a movement zone which contains an elastic support member to aid the first keycaps and the second keycaps to move against the circuit board. ### Claim 11 (depends on 10) The simple assembly thin keyboard of claim 10, wherein the elastic support member includes a trigger portion depressible by the first keycaps or the second keycaps to connect the circuit board to generate the keyboard command signals. ### Claim 12 (depends on 10) The simple assembly thin keyboard of claim 10, wherein the elastic support member is located in the center of the first keycap and the second keycap. ### Claim 13 (depends on 10) The simple assembly thin keyboard of claim 10, wherein the elastic support member is located at four corners of the first keycaps and the second keycaps. ### Claim 14 (depends on 2) The simple assembly thin keyboard of claim 2, wherein both the first keycaps and the second keycaps include a depressible first upper surface and a lower surface, the lower surface including a contact portion extended towards the circuit board. ### Claim 15 (depends on 2) The simple assembly thin keyboard of claim 2, wherein the first keycaps or the second keycaps and the circuit board are interposed by a movement zone which contains an elastic support member to aid the first keycaps and the second keycaps to move against the circuit board. ### Claim 16 (depends on 15) The simple assembly thin keyboard of claim 15, wherein the elastic support member includes a trigger portion depressible by the first keycaps or the second keycaps to connect the circuit board to generate the keyboard command signals. ### Claim 17 (depends on 15) The simple assembly thin keyboard of claim 15, wherein the elastic support member is located in the center of the first keycap and the second keycap. ### Claim 18 (depends on 15) The simple assembly thin keyboard of claim 15, wherein the elastic support member is located at four corners of the first keycaps and the second keycaps. ### Claim 19 (depends on 1) The simple assembly thin keyboard of claim 1, wherein the connection arm is located at opposing lateral sides of the first keycaps and the second keycaps. ### Claim 20 (depends on 1) The simple assembly thin keyboard of claim 1, wherein the both first keycaps and the second keycaps include a depressible first upper surface, a second upper surface formed at an elevation difference with the first upper surface and, a lower surface facing the circuit board, the connection arm bridging opposing lateral sides of the second upper surfaces of the first keycaps and the second keycaps.