Energy storage device for hydraulic trolley jacks

摘要

The invention relates to mobile hydraulic vehicle jacks which are used in particular for servicing and maintenance work in workshops. The aim and object of the invention consist in accelerating the action of advancing and positioning the jack by the energy fed in during the lifting action being stored and utilized for the next lifting action. According to the invention this object is achieved in that a gas-loaded accumulator is connected via a valve to the working cylinder under pressure, and the lowering load feeds the hydraulic fluid into the accumulator. <IMAGE>