Patent ID: 6997443

Claim:
A jack for a vehicle, comprising: a main frame including a first end, a second end, and two sides, a first end plate being integrally formed on the first end of the main frame and having a first hole, a second end plate being integrally formed on the second end of the main frame and having a second hole aligned with the first hole of the first end plate, the first end and the second end of the main frame being adapted to be fixed to an underside of a vehicle; a screw rod having a first end extending through the first hole of the first end plate and a second end extending through the second hole of the second end plate, the second end of the screw rod being adapted to be driven to cause rotation of the screw rod; a movable member mounted on the screw rod and located adjacent to the first end of the screw rod, the movable member being slidable along the screw rod when the screw rod is turned; a fixed member fixed to the main frame and located adjacent to the second end of the screw rod; a lower supporting member including a lower end in contact with a ground and an upper end pivotally connected to the movable member; and a connecting member including a first end pivotally connected to the fixed member and a second end pivotally connected to an intermediate portion of the lower supporting member; wherein when the screw rod is turned in a direction, the movable member moves in a direction along the screw rod, thereby moving the lower supporting member and the connecting member to a position for supporting the vehicle; wherein when the screw rod is turned in a reverse direction, the movable member moves in a reverse direction along the screw rod, thereby moving the lower supporting member and the connecting member to a folded state; and wherein the first end of the main frame and the first end plate have a first joint area therebetween, the second end of the main frame and the second end plate having a second joint area therebetween, two lugs being formed in each of the first joint area and the second joint area, the respective lug having a fixing hole, allowing the main frame to be fixed to the underside of the vehicle.