# US 10,869,553 B2 · Supporting apparatus of a server cabinet and server cabinet using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,869,553 B2 - Document ID: US10869553B2 - Status: Granted - Kind: B2 - Application number: 16/166,146 - Filed: 2018-10-21 - Published: 2020-02-20 - Granted: 2020-12-22 - Earliest claimed: 2018-08-16 - Assignees: Hongfujin Precision Electronics (Tianjin) Co., Ltd. - Applicants: Hongfujin Precision Electronics (Tianjin) Co., Ltd. - Inventors: Hsueh-Chin Lu; Ti-An Tsai; Hung-Liang Chung - Web page: https://patentgrep.com/patent/US10869553B2 ## CPC - A47B 97/00: Furniture or accessories for furniture, not provided for in other groups of this subclass - H05K 7/1488: {Cabinets therefor, e.g. chassis or racks or mechanical interfaces between blades and support structures} - H05K 7/18: Construction of rack or frame - A47B 2097/008: {Anti-tip devices} - A47B: TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE (furniture jointing F16B) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract An inbuilt but deployable supporting apparatus for supporting a server cabinet includes an extension arm and a supporting unit. The extension arm includes two opposite ends, one end of the extension arm is movably connected to a lower side of the server rack, the supporting unit is connected to the other end of the extension arm. The extension arm is movable between a retracted position, where the extension arm saves space by being accommodated in the lower side of the server rack, and a deployed position, where the extension arm is extended out of the server rack and, being adjustable in respect of the distance or depth down to a supporting surface, takes support from the supporting surface through the supporting unit. ## Claims ### Claim 1 A supporting apparatus for supporting a server rack, comprising: an extension arm comprising two opposite ends, wherein one end of the extension arm is movably connected to a lower side of the server rack; and a supporting unit connected to the other end of the extension arm; wherein the extension arm is movable between a retracted position, where the extension arm is accommodated in the lower side of the server rack, and a deployed position, where the extension arm extends out of the server rack and contacts surface of the floor through the supporting unit; wherein the supporting apparatus further comprises a latching unit comprising: an elastic sheet accommodated in the extension arm; and a protrusion protruding from the elastic sheet; a resisting portion extending toward the supporting unit from the elastic sheet; wherein the extension arm defines a first installation slot and comprises a blocking portion in the first installation slot, the elastic sheet is accommodated in the first installation slot, the blocking portion is positioned below the resisting portion and configured to prevent the resisting portion falling out of the first installation slot, when the extension arm moves to the deployed position, the extension arm extends out of the server rack and the protrusion protrudes out of the first installation slot under force of the elastic sheet, the protrusion resists against the server rack and keeps the extension arm at the deployed position. ### Claim 2 (depends on 1) The supporting apparatus of claim 1, wherein the supporting unit is rotationally connected to the other end of the extension arm, and the supporting unit rotates relative to the other end of the extension arm to adjust a distance between the extension arm and the floor. ### Claim 3 (depends on 2) The supporting apparatus of claim 2, wherein the supporting unit comprises: a supporting member; and a rotating arm fixed to a side of the supporting member and rotationally connected to the other end of the extension arm. ### Claim 4 (depends on 3) The supporting apparatus of claim 3, wherein the supporting unit is rotatable relative to the other end of the extension arm between: a first position, where the rotating arm is parallel to the extension arm, and a second position, where the rotating arm is perpendicular to the extension arm. ### Claim 5 (depends on 4) The supporting apparatus of claim 4, wherein the rotating arm defines a pivot hole; the supporting apparatus further comprises a pivot pin fixed to the other end of the extension arm; the rotating arm is rotationally connected to the other end of the extension arm through the pivot hole and the pivot pin. ### Claim 6 (depends on 4) The supporting apparatus of claim 4, wherein the supporting apparatus further comprises a adjusting unit movably mounted to the supporting member; when the extension arm extends out of the server rack and the supporting unit resists against the floor, the adjusting unit is driven by the supporting member to resist against the floor, and the adjusting unit is movable relative to the supporting member to adjust a distance between the extension arm and the floor. ### Claim 7 (depends on 6) The supporting apparatus of claim 6, wherein the supporting member defines a threaded hole, and the adjusting unit is a screw installed to the threaded hole. ### Claim 8 (depends on 4) The supporting apparatus of claim 4, wherein the extension arm comprises a first latching portion; the supporting apparatus further comprises a first latching member corresponding to the first latching portion; when the supporting unit rotates relative to the other end of the extension arm to the second position, the first latching portion resists against the first latching member. ### Claim 9 (depends on 1) The supporting apparatus of claim 1, wherein the supporting apparatus further comprises a second latching portion fixed on the server rack corresponding to the protrusion; when the extension arm extends out of the server rack and the protrusion protrudes out of the extension arm under pretension force of the elastic sheet, the protrusion resists against the second latching portion. ### Claim 10 A server cabinet comprising: a server rack; and a supporting apparatus for supporting the server rack, comprising: an extension arm comprising two opposite ends, wherein one end of the extension arm is movably connected to a lower side of the server rack; and a supporting unit connected to the other end of the extension arm; wherein the extension arm is movable between a retracted position, where the extension arm is accommodated in the lower side of the server rack, and a deployed position, where the extension arm extends out of the server rack and resists against a supporting surface through the supporting unit; wherein the supporting apparatus further comprises a latching unit comprising: an elastic sheet accommodated in the extension arm; and a protrusion protruding from the elastic sheet; a resisting portion extending toward the supporting unit from the elastic sheet; wherein the extension arm defines a first installation slot and comprises a blocking portion in the installation slot, the elastic sheet is accommodated in the first installation slot, the blocking portion is positioned below the resisting portion and configured to prevent the resisting portion falling out of the first installation slot, when the extension arm moves to the deployed position, the extension arm extends out of the server rack and the protrusion protrudes out of the first installation slot under force of the elastic sheet, the protrusion resists against the server rack and keeps the extension arm at the deployed position. ### Claim 11 (depends on 10) The server cabinet of claim 10, wherein the supporting unit is rotationally connected to the other end of the extension arm, and the supporting unit rotates relative to the other end of the extension arm to adjust a distance between the extension arm and a supporting surface. ### Claim 12 (depends on 11) The server cabinet of claim 11, wherein the supporting unit comprises: a supporting member; and a rotating arm fixed to a side of the supporting member and rotationally connected to the other end of the extension arm. ### Claim 13 (depends on 12) The server cabinet of claim 12, wherein the supporting unit is rotatable relative to the other end of the extension arm between a first position, where the rotating arm is parallel to the extension arm, and a second position, where the rotating arm is perpendicular to the extension arm. ### Claim 14 (depends on 13) The server cabinet of claim 13, wherein the rotating arm defines a pivot hole; the supporting apparatus further comprises a pivot pin fixed to the other end of the extension arm; the rotating arm is rotationally connected to the other end of the extension arm through the pivot hole and the pivot pin. ### Claim 15 (depends on 13) The server cabinet of claim 13, wherein the supporting apparatus further comprises a adjusting unit movably mounted to the supporting member; when the extension arm extends out of the server rack and the supporting unit resists against a supporting surface, the adjusting unit is driven by the supporting member to resist against the supporting surface, and the adjusting unit is movable relative to the supporting member to adjust a distance between the extension arm and the supporting surface. ### Claim 16 (depends on 15) The server cabinet of claim 15, wherein the supporting member defines a threaded hole, and the adjusting unit is a screw installed to the threaded hole. ### Claim 17 (depends on 13) The server cabinet of claim 13, wherein the extension arm comprises a first latching portion; the supporting apparatus further comprises a first latching member corresponding to the first latching portion; when the supporting unit rotates relative to the other end of the extension arm to the second position, the first latching portion resists against the first latching member. ### Claim 18 (depends on 10) The server cabinet of claim 10, wherein the supporting apparatus further comprises a second latching portion fixed on the server rack corresponding to the protrusion; when the extension arm extends out of the server rack and the protrusion protrudes out of the extension arm under pretension force of the elastic sheet, the protrusion resists against the second latching portion.