Jack
AssigneeAutolift Production s.r.o.
InventorJan Mutkovic
Life of this patent
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AssigneeAutolift Production s.r.o.
InventorJan Mutkovic
Estimating the term…
A jack comprises at least one lifting section with an upper platform and a lower platform. These platforms are mutually connected by rotationally attached arms. Each lifting section comprises a strut that is slidingly connected to the lower platform at a lower end and rotationally connected to the upper platform at an upper end. Each lifting section further comprises a linear drive to slide the lower end of the strut, wherein the direction of the sliding of the lower end of the strut is parallel to the longitudinal axis of the lifting section and to the lower platform. The linear drive preferably comprises a threaded rod rotationally attached to the lower platform and a gearbox, wherein torque source can be a drill. For lifting two-track vehicles, the jack can comprise a pair of connected lifting sections. For lifting single-track vehicles, the jack can comprise a bracket for a wheel and a ramp for a single-track vehicle.
A jack comprising two lifting sections each comprising an upper platform and a lower platform that are mutually connected by two pairs of arms, wherein each arm is rotationally and non-slidingly connected to the upper platform at an upper end of the arm and rotationally and non-slidingly connected to the lower platform at a lower end of the arm, wherein each lifting sections further comprises a strut that is slidingly connected to the lower platform at a lower end of the lower platform and rotationally connected to the upper platform at an upper end of the upper platform, wherein each lifting section further comprises a linear drive to slide a lower end of the strut, wherein the linear drive is connected to the lower platform and to the strut, wherein a direction of sliding of the lower end of the strut is parallel to a longitudinal axis of the lifting section and to the lower platform, wherein, when viewed from a side, both pairs of arms on each lifting section form a parallelogram with the upper platform and the lower platform, wherein the lower platforms of the two liftin sections are connected at ends by cross members, wherein one of the cross members comprises a shaft for transmitting torque between the lifting sections, the shaft being connected by a gearbox to the linear drive of both lifting sections, wherein the shaft is connected at each end thereof by a gear to one of the linear drives, wherein the linear drive of at least one lifting section is provided with an end piece for attachment to a drill.
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Dependencies are inferred from the claim text.