A screw nut system, a method for quickly adjusting a device including the screw nut system, such as a seat lift, and a seat lift including the system

摘要

The invention relates to a screw nut system (2)Includes screws () and two nuts () 6, 8. According to the invention, the relative angle position between two nuts is adjustable. The screw and the two nuts are configured so that when the angle phase of the two nuts, the screw can be positioned at a fast adjusting position, wherein the thread of the screw does not match the thread of the two nuts, and the screw can move freely relative to the translation. Two nuts, so that when the angle of the two nuts is offset, the thread of the screw and the thread of the two nuts are engaged, regardless of the direction of the screw.