公开(公告)号：DE69008279D1

公开(公告)日：1994-05-26

申请号：DE69008279

申请日：1990-08-08

Applicant: IBM

Inventor： DESSEL JOSEPH LEO ,  GATTO JEFFREY VINCENT ,  HOWE DAVID BRIAN ,  HUNT DANIEL JOSEPH ,  SCHAEFER DAVID BRIAN ,  WILSON III JOSEPH TOWNSEND

IPC: B41J11/26 ,  B41J11/30 ,  B65H20/20 ,  F16G1/28 ,  G03B1/24 ,  G03B1/30 ,  G03G15/00

公开(公告)号：DE69008279T2

公开(公告)日：1994-11-17

申请号：DE69008279

申请日：1990-08-08

Applicant: IBM

Inventor： DESSEL JOSEPH LEO ,  GATTO JEFFREY VINCENT ,  HOWE DAVID BRIAN ,  HUNT DANIEL JOSEPH ,  SCHAEFER DAVID BRIAN ,  WILSON III JOSEPH TOWNSEND

IPC: B41J11/26 ,  B41J11/30 ,  B65H20/20 ,  F16G1/28 ,  G03B1/24 ,  G03B1/30 ,  G03G15/00

公开(公告)号：DE2718489A1

公开(公告)日：1977-12-15

申请号：DE2718489

申请日：1977-04-26

Applicant: IBM

Inventor： BONNER GILBERT BELMONT ,  DESSEL JOSEPH LEO

IPC: H02K37/00 ,  H02K41/02 ,  H02K41/03

Abstract: A linear actuator comprises a toothed magnetic motor bar and a motor element having a pair of E-cores on opposite sides of the motor bar. Rollers attached directly to the E-cores ride on the motor bar to maintain a fixed air gap between the motor bar and the pole faces of the E-cores. The E-cores are connected by I-shaped connector plates to hold the tooth relationship between E-cores. The connector plates also are flexible to compensate for variations in thickness of the motor bar.