Title:
DRIVE DEVICE IN MACHINE TOOL AND THE MACHINE TOOL
Document Type and Number:
Japanese Patent JP3400435
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a linear motor type drive device which can avoid dimensional increase and weight increase of a machine tool.
SOLUTION: A row of magnets 560 are provided in respective magnet retaining grooves 54 of pairs of magnet row support parts 55 and 55 so as to make the respective magnets face each other with a coil passing space S between. Attracting forces of the magnets whose backs face each other on one comb-shaped protrusion 53 cancel each other and the comb-shaped protrusions 53 on both the side ends can be effectively reinforced by ribs 52a by utilizing the widths of the magnets 56.
Inventors:
Tsunehiko Yamazaki
Kohei Ohnishi
Naoomi Miyakawa
Toshihiko Inoue
Kohei Ohnishi
Naoomi Miyakawa
Toshihiko Inoue
Application Number:
JP2001083093A
Publication Date:
April 28, 2003
Filing Date:
March 22, 2001
Export Citation:
Assignee:
Tsunehiko Yamazaki
International Classes:
B23Q11/00; B23Q5/28; H02K5/10; H02K41/03; (IPC1-7): H02K41/03; B23Q5/28; B23Q11/00; H02K5/10
Domestic Patent References:
| JP10512438A | ||||
| JP200014119A | ||||
| JP200169745A |
Other References:
【文献】国際公開97/2647(WO,A1)
Attorney, Agent or Firm:
Shinji Aida (1 outside)
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