# US 11,028,624 B2 · Supporting device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,028,624 B2 - Document ID: US11028624B2 - Status: Granted - Kind: B2 - Application number: 16/780,212 - Filed: 2020-02-03 - Published: 2020-06-04 - Granted: 2021-06-08 - Earliest claimed: 2017-08-07 - Assignees: Fositek Corporation - Applicants: Fositek Corporation - Inventors: An-Szu Hsu - Web page: https://patentgrep.com/patent/US11028624B2 ## CPC - E05D 3/12: with two parallel pins and one arm - F16C 11/04: Pivotal connections (hinges for doors, windows or wings E05D) - G06F 1/1641: {the display being formed by a plurality of foldable display components (G06F1/1647 takes precedence)} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G06F 1/1681: {Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683)} - E05D 3/122: {Gear hinges} - E05Y 2999/00: Subject-matter not otherwise provided for in this subclass - E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00) - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF ## Abstract A supporting device includes a dual-shaft hinge module and two buffering modules respectively arranged at two opposite sides of the dual-shaft hinge module. Each dual-shaft hinge module includes two shafts, a linking member clamped between the two shafts, and two side wing members respectively and slidably installed on the two shafts. The two buffering modules are respectively installed on the two shafts and are respectively cooperated with the two side wing members. Each buffering module includes an internal connecting member fixed on and synchronously rotatable with the corresponding shaft and an external connecting member slidably disposed on the internal connecting member and provided to be fixed on a carrying plate. Each side wing member has a limiting portion passing through the corresponding internal connecting member and the corresponding external connecting member. ## Claims ### Claim 1 A supporting device for being mounted on a carrying plate, comprising: a dual-shaft hinge module including: two shafts substantially parallel to each other and each having a spiral groove recessed on an outer surface thereof; a transmitting member clamped between the two shafts, wherein the transmitting member has two driving portions respectively protruding from two opposite sides thereof and respectively inserted into the two spiral grooves of the two shafts; and two side wing members respectively and slidably fastened to the two shafts and each having a limiting portion; wherein one of the two shafts is spinable to synchronously rotate the other shaft through the transmitting member so as to respectively move the two side wing members along the two shafts; and two buffering modules respectively fastened to the two shafts and arranged at two opposite outer sides of the two shafts, wherein the two buffering modules are respectively cooperated with the two side wing members, and each of the two buffering modules includes: an internal connecting member fixed on and synchronously rotatable with the corresponding shaft, wherein the internal connecting member has a long hole parallel to each of the two shafts and sleeved on the limiting portion of the corresponding side wing member; and an external connecting member slidably disposed on the internal connecting member and configured for being fixed on an inner surface of the carrying plate, wherein the external connecting member has a slanting hole non-parallel to the long hole and sleeved on the limiting portion of the corresponding side wing member, and the slanting hole has a first end arranged adjacent to the corresponding shaft and an opposite second end arranged away from the corresponding shaft. ### Claim 2 (depends on 1) The supporting device as claimed in claim 1, wherein each of the transmitting members includes a transmitting block and a transmitting rod coupling through and fastened to the transmitting block; in the dual-shaft hinge module, the transmitting block is sandwiched between the two shafts and includes the two driving portions respectively arranged on two opposite sides thereof. ### Claim 3 (depends on 2) The supporting device as claimed in claim 2, wherein in the dual-shaft hinge module, the transmitting block has two concave surfaces respectively recessed on the two opposite sides thereof and respectively facing the two shafts, the two driving portions respectively protrude from the two concave surfaces, and each of the two concave surfaces is arranged to accommodate a portion of the corresponding shaft. ### Claim 4 (depends on 3) The supporting device as claimed in claim 3, wherein in a cross section of the dual-shaft hinge module perpendicular to each of the two shafts, each of the two concave surfaces is substantially an arc shape having a center of circle overlapped at a center of the portion of the corresponding shaft. ### Claim 5 (depends on 1) The supporting device as claimed in claim 1, wherein the dual-shaft hinge module includes two linking members respectively arranged at two opposite sides of the transmitting block, and each of the linking members is sleeved on the two shafts; wherein in the dual-shaft hinge module, two opposite ends of the transmitting rod are respectively abutted against inner surfaces of the two linking members, each of the two side wing members includes two end portions slidably sleeved on the corresponding shaft and respectively abutted against outer surfaces of the two linking members, the transmitting member and the two linking members are synchronously movable to move the two side wing members along the two shafts at the same time. ### Claim 6 (depends on 1) The supporting device as claimed in claim 1, wherein each of the spiral grooves has a spiral angle within a range of 40-60 degrees, and a depth of each of the spiral grooves is ⅕- 1/7 of a maximum diameter of the corresponding shaft.