US 11,654,871 B2
Built-in vehicle jack
Hayder Tahir Almawashi, Alexandria, VA (US)
Filed by Hayder Tahir Almawashi, Alexandria, VA (US)
Filed on Jun. 29, 2021, as Appl. No. 17/361,483.
Application 17/361,483 is a continuation of application No. 16/673,547, filed on Nov. 4, 2019, granted, now 11,077,834.
Prior Publication US 2021/0323511 A1, Oct. 21, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B60S 9/10 (2006.01)
CPC B60S 9/10 (2013.01) 19 Claims
OG exemplary drawing
 
1. A lifting mechanism, comprising:
a hydraulic arm bar frame attached to a frame of a vehicle and extending parallel to a longitudinal axis of the frame of the vehicle;
a first jack arm and a first pivot joint, the first pivot joint pivotably connecting one end of the first jack arm to the hydraulic arm bar frame; and
a second jack arm, a second pivot joint, and a third pivot joint, the second pivot joint pivotably connecting one end of the second jack arm to the hydraulic arm bar frame, and the third pivot joint pivotably connecting another end of the second jack arm to another end of the first jack arm, wherein the second jack arm includes a jack extension case and a jack extension bar that is slidably disposed within the jack extension case, the jack extension bar extending from and withdrawing within the jack extension case in response to increasing and decreasing hydraulic pressure, respectively, wherein the jack extension bar extends from the jack extension case in response to increasing hydraulic pressure, causing the first jack arm to pivot toward the ground and lift the nearby wheel off of the ground, wherein
a distance between the first pivot joint and the second pivot joint is fixed and the distance is less than a sum of a length of the first arm bar and a length of the second arm bar when the jack extension bar is fully extended from the jack extension case.