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US 6,199,806 B1Granted
Longitudinally displaceable column
AssigneeStabilus GmbH
InventorsRainer Sauer, Axel Knopp
Life of this patent
Estimating the term…
Abstract
A longitudinally displaceable column includes a longitudinal adjusting unit which is supported on a base plate of a vertical tube. The adjusting unit has a rod that receives an axial bearing, which is interposed between the rod and the base plate so that the rod is rotatable relative to the base plate. The axial bearing is a sliding bearing that has a sliding member.
Claims13
A longitudinally displaceable column comprising
- a vertical support tube;
- a base plate affixed to the support tube adjacent a lower end thereof;
- and
- a longitudinal adjusting unit having a rod supported at a lower end thereof on the base plate by an axial bearing so that the rod is rotatable relative to the base plate, the rod including an annular groove adjacent the base plate, the axial bearing being a sliding bearing that includes a sliding member, and the sliding member including locking projections engaged in the groove of the rod and forming a locking connection between the sliding member and the rod against axial movement of the rod relative to the sliding member and free spaces enabling radial expansion of the locking projections, the locking projections including bevels that upon engagement with the piston rod at assembly of the sliding member on the piston rod convert an axial motion of the sliding member in the direction of assembly into the radial expansion of the locking projections, while in the event of assembly of the sliding member in the wrong direction faces of the locking projections engage the piston rod and make further assembly motion at least difficult.
1 more element
A longitudinally displaceable column comprising
- a vertical support tube;
- a base plate affixed to the support tube adjacent a lower end thereof;
- and
- a longitudinal adjusting unit having a rod supported at a lower end thereof on the base plate by an axial bearing so that the rod is rotatable relative to the base plate, the rod including an annular groove adjacent the base plate, the axial bearing being a sliding bearing that includes a sliding member, the sliding member including locking projections engaged in the groove of the rod and forming a locking connection between the sliding member and the rod against axial movement of the rod relative to the sliding member and free spaces enabling radial expansion of the locking projections, the sliding bearing further including a supporting disk that supports the rod of the longitudinal adjusting unit, and the supporting disk being engaged by a shoulder on the rod, a peripheral flange portion that forms an upper recess in the sliding member in which the supporting disk is received and retained radially and includes overhangs on an upper part of the flange portion retaining the supporting disk axially, and the flange portion having recesses which increase the elasticity of the flange portion.
1 more element
Dependencies are inferred from the claim text.