Lead screw structure and assembly and rear wheel steering apparatus using the same

A lead screw structure comprises a screw shaft having a thread on an outer circumferential surface thereof, a nut unit coupled to the screw shaft such that and a thread formed on an inner circumferential surface of the nut unit is engaged with the thread of the screw shaft, and a first elastic membe...

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Bibliographische Detailangaben
Hauptverfasser:	Shin, Kyung Sub, Chae, Han Sang
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MECHANICAL ENGINEERING MOTOR VEHICLES PERFORMING OPERATIONS THERMAL INSULATION IN GENERAL TRAILERS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A lead screw structure comprises a screw shaft having a thread on an outer circumferential surface thereof, a nut unit coupled to the screw shaft such that and a thread formed on an inner circumferential surface of the nut unit is engaged with the thread of the screw shaft, and a first elastic member disposed on a portion of the nut portion, in a direction of the screw shaft, to provide an elastic force to the nut portion in the screw shaft, thereby compensating for a gap between the thread of the outer circumferential surface of the screw shaft and the thread of the inner circumferential surface of the nut unit.