Patent · US Active

Support jack

US8157247B2 · kind B2 · utility

2Cited by

7References

10Claims

0Family size

Assignee

JOST-WERKE GMBH · DE

Inventors

Günter Seidel · Hameln, DE
Gerald Muller · Rodgau, DE

Key dates

Filing date	Jul 20, 2006
Grant date	Apr 17, 2012
Priority date	—
Expiry date	Jun 10, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49826
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A support jack for supporting semitrailers including a vertically telescopically displaceable supporting device having an outer sleeve and an inner sleeve. A spindle nut has projections and contact elements for being positively detachably connected to the sleeves. The projections interact with openings of the inner sleeve for fixing the spindle nut in the direction of the longitudinal axis of the support jack. The contact elements interact with an inner side of the outer sleeve for fixing the spindle nut in the direction of rotation about the longitudinal axis. A method of assembling a support jack is also described, in which the spindle nut is connected detachably to the inner sleeve by at least one translatory and one rotary joining movement or at least two translatory joining movements.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.