# US 10,501,295 B2 · Lifting jack for automotive > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,501,295 B2 - Document ID: US10501295B2 - Status: Granted - Kind: B2 - Application number: 15/851,208 - Filed: 2017-12-21 - Published: 2019-05-02 - Granted: 2019-12-10 - Earliest claimed: 2017-10-31 - Assignees: Hyundai Motor Company; Kia Motors Corporation - Applicants: Hyundai Motor Company; Kia Motors Corporation - Inventors: Geel Eeshan - Web page: https://patentgrep.com/patent/US10501295B2 ## CPC - B66F 3/12: comprising toggle levers (lazy-tongs mechanisms B66F3/22) - B66F 3/08: screw operated (B66F3/44 takes precedence; gearings F16H) - B66F 3/22: Lazy-tongs mechanisms {(B66F11/042 takes precedence)} - B66F: HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD ({invalid lifting devices A61G7/10; } mounting artificial islands on piles or like supports E02B17/00; scaffolding combined with lifting devices E04G1/22; lifting devices for sliding forms E04G11/24; lifting of buildings E04G23/06; shores or struts E04G25/00; lifts or other hoisting devices on ladders E06C7/12; props for mining E21D15/00) ## Abstract A lifting jack for automotive may include a base; a pair of lower arms of which one end portion is hingedly engaged with both sides of the base; a stand having a stand groove; a pair of upper arms of which one end portion is hingedly engaged with both sides of the stand and the other end portion is hinge is hingedly engaged with the other end portion of the pair of lower arms; a fix bracket hingedly engaged with the other end portion of the lower arm and the other end portion of the upper arm; a hollow screw rod penetrating and being inserted into the fix bracket and screw threads are provided on an external circumference; a connection shaft inserted into an internal circumference of the screw rod; and a key inserted into the screw rod through the fix bracket. ## Claims ### Claim 1 A lifting jack for an automotive, comprising: a base; a pair of lower arms of which a first end portion is pivotally engaged with a first side and a second side of the base; a stand having a stand groove; a pair of upper arms of which a first end portion is pivotally engaged with a first side and a second side of the stand and a second end portion is pivotally engaged with a second end portion of the pair of lower arms; a fix bracket pivotally engaged with the second end portion of one of the pair of lower arms and the second end portion of one of the pair of upper arms; a hollow screw rod penetrating and being inserted into the fix bracket wherein screw threads are provided on an external circumference thereof; a connection shaft inserted into an internal circumference of the screw rod; and a key inserted into the screw rod through the fix bracket wherein the connection shaft is inserted into and fixed at the internal circumference of the screw rod. ### Claim 2 (depends on 1) The lifting jack for the automotive of claim 1, wherein the second end portion of the pair of lower arms is pivotally engaged with an external side of the second end portion of the pair of upper arms. ### Claim 3 (depends on 1) The lifting jack for the automotive of claim 1, wherein the fix bracket is pivotally engaged with an internal side of one of the pair of upper arms. ### Claim 4 (depends on 1) The lifting jack for the automotive of claim 1, wherein screw grooves are provided at the internal circumference of the screw rod. ### Claim 5 (depends on 4) The lifting jack for the automotive of claim 4, wherein shaft protrusions engaged with the screw grooves are provided at an external circumference of the connection shaft. ### Claim 6 (depends on 5) The lifting jack for the automotive of claim 5, wherein the connection shaft rotates in a direction which is vertical to a lengthwise direction of the connection shaft wherein the screw grooves and the shaft protrusions are engaged with each other. ### Claim 7 (depends on 6) The lifting jack for the automotive of claim 6, wherein key protrusions are provided at an external circumference of the key, and the key protrusions are inserted between and engaged with the shaft protrusions. ### Claim 8 (depends on 7) The lifting jack for the automotive of claim 7, wherein the key is inserted into the screw rod through the fix bracket in state that the key rotates in a direction vertical to a lengthwise direction of the connection shaft and the screw grooves and the shaft protrusions are engaged with each other. ### Claim 9 (depends on 8) The lifting jack for the automotive of claim 8, wherein the base and the stand are remote from each other by rotating the connection shaft in an opposite direction to rotation direction which the screw grooves and the shaft protrusions are engaged with each other. ### Claim 10 (depends on 8) The lifting jack for the automotive of claim 8, wherein the base and the stand are remote from each other by rotating the key in an opposite direction to a rotation direction which the screw grooves and the shaft protrusions are engaged with each other. ### Claim 11 (depends on 8) The lifting jack for the automotive of claim 8, wherein a key hole is provided at an end portion of the key in an opposite direction to a direction which the key is inserted into the screw rod. ### Claim 12 (depends on 11) The lifting jack for the automotive of claim 11, wherein the key rotates by inserting a wrench into the key hole and rotating the wrench. ### Claim 13 (depends on 11) The lifting jack for the automotive of claim 11, wherein the key hole and the fix bracket are connected to each other by a chain. ### Claim 14 (depends on 6) The lifting jack for the automotive of claim 6, wherein a connection shaft hole is provided at an end portion of the connection shaft in an opposite direction to a direction which the connection shaft is inserted into the internal surface of the screw rod. ### Claim 15 (depends on 14) The lifting jack for the automotive of claim 14, wherein the connection shaft rotates by inserting a wrench into the connection shaft hole and rotating the wrench.