Title:
LINEAR MOTOR
Document Type and Number:
WIPO Patent Application WO/2015/136762
Kind Code:
A1
Abstract:
A linear motor is equipped with a tubular yoke and a rod inserted into the yoke in an axial direction and is constructed so that the yoke and the rod are allowed to be displaced relative to each other in the axial direction. The linear motor comprises: a plurality of teeth projecting from the inner circumferential surface of the yoke in the radial direction and provided adjacent to each other in the axial direction; slots formed between the adjacent teeth; a coil disposed in each of the slots; and a plurality of permanent magnets held in the rod side by side in the axial direction. The linear motor is configured such that at least one of the two slots located on the outermost sides in the axial direction is formed so as to have a slot width (W1) narrower than the slot width (W2) of the other slots.
Inventors:
KANO YOSHIAKI (JP)
SATO KOUSUKE (JP)
TAKAHASHI NORIYUKI (JP)
SATO KOUSUKE (JP)
TAKAHASHI NORIYUKI (JP)
Application Number:
PCT/JP2014/078267
Publication Date:
September 17, 2015
Filing Date:
October 23, 2014
Export Citation:
Assignee:
NAT INST OF TECHNOLOGY (JP)
KAYABA INDUSTRY CO LTD (JP)
KAYABA INDUSTRY CO LTD (JP)
International Classes:
H02K41/03
Domestic Patent References:
| WO2006082134A1 | 2006-08-10 |
Foreign References:
| JP2012100407A | 2012-05-24 | |||
| JP2011188709A | 2011-09-22 |
Other References:
See also references of EP 3073623A4
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
Masaki Goto (JP)
Masaki Goto (JP)
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