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Title:
ELECTROMAGNETIC RECIPROCATING DRIVING MECHANISM
Document Type and Number:
Japanese Patent JP2001057767
Kind Code:
A
Abstract:

To provide an electromagnetic reciprocating driving mechanism, capable of attaining easy assembly and high assembling accuracy.

A spider 17 is provided, which coaxially retains a cluster of permanent magnets 18 formed by arranging permanent magnets 22 into a tubular shape. An electromagnetic coil 21 is wound around an external layered core 20, formed near the cluster of permanent magnets 18. Ribs 17a, 19a are formed axially around the spider 17 and a retainer 19, and the outer peripheral side of step difference parts 22a, 22b at the end part of the permanent magnets 18 are brought into contact with the inner periphery side of the ribs 17a, 19a to position the permanent magnets 18 at the spider 17. It is thus possible to easily and accurately mount the cluster of permanent magnets 18 on the spider 17 and assemble an electromagnetic reciprocating drive mechanism 16.


Inventors:
Suzuki, Kentaro
Urasawa, Hideto
Suzuki, Soji
Application Number:
JP1999000227934
Publication Date:
February 27, 2001
Filing Date:
August 11, 1999
Export Citation:
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Assignee:
TWINBIRD CORP
International Classes:
H02K33/16; F16J10/00; F25B9/14; (IPC1-7): H02K33/16; F16J10/00; F25B9/14
Attorney, Agent or Firm:
牛木 護