| 摘要 |
The invention relates to the motor car construction and service center. A jack for lifting a car comprises a lever mechanism, a drive handle and a screw. The levers of toggle mechanism have a shape similar to the shape of a bent curved channel bar. Said levers comprise holes and/or cuts made so as not to reduce the permissible effort that should be applied to the levers when lifting the car. In the main levers, which are connected to a bearing axle auxiliary axles are located. The distance to the axis of symmetry of each of two auxiliary axles from the axis of symmetry of bearing axle is 100 to . The distance to the axis of symmetry of the mobile axle connecting two auxiliary levers from each of axis of symmetry is also 100 to . The bearing axle is made of sheet metal by bending, and consists of one or more parts. The parts are cylindrical in shape, or shape of an incomplete cylinder. The screw is based on any of the parts of bearing axle. The technical result is the reduction of material consumption while improving the performance of the jack. |
