EP 1330615 A1 20030730 - BALL SCREW
Title (en)
BALL SCREW
Title (de)
GEWINDETRIEB
Title (fr)
VIS A BILLES
Publication
Application
Priority
- DE 10052504 A 20001023
- DE 10128252 A 20010611
- EP 0112074 W 20011018
Abstract (en)
[origin: US2004093973A1] The invention relates to a ball screw comprising a threaded nut, a threaded spindle, supporting rolling bodies, which are provided in the form of balls rotating inside thread grooves of the threaded nut as well as of the threaded spindle, and comprising a return area for the balls. In order to considerably reduce the manufacturing costs, especially by a non-cutting fabrication of the threaded nut, and to obtain a higher power density by homogenizing the contact area percentage of the ball screw, the threaded nut is comprised of a helically wound profile material according to the invention. The invention relates to a ball screw comprising a threaded nut (2), a threaded spindle (1), supporting rolling bodies (3), which are provided in the form of balls rotating inside thread grooves (5,4) of the threaded nut (2) as well as of the threaded spindle (1), and comprising a return area (6) for the balls (3). In order to considerably reduce the manufacturing costs, especially by a non-cutting fabrication of the threaded nut, and to obtain a higher power density by homogenizing the contact area percentage of the ball screw, the threaded nut (2) is comprised of a helically wound profile material (7) according to the invention.
IPC 1-7
IPC 8 full level
B21F 3/02 (2006.01); B21F 45/16 (2006.01); F16H 25/22 (2006.01); F16H 25/24 (2006.01)
CPC (source: EP US)
B21F 3/02 (2013.01 - EP US); B21F 45/16 (2013.01 - EP US); F16H 25/2427 (2013.01 - EP US); F16H 25/2204 (2013.01 - EP US); F16H 25/2228 (2013.01 - EP US); Y10T 74/19763 (2015.01 - EP US)
Citation (search report)
See references of WO 0235118A1
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
US 2004093973 A1 20040520; EP 1330615 A1 20030730; JP 2004535530 A 20041125; WO 0235118 A1 20020502
DOCDB simple family (application)
US 39981103 A 20030423; EP 0112074 W 20011018; EP 01988831 A 20011018; JP 2002538068 A 20011018