Title:
誘導コイル装置
Document Type and Number:
Japanese Patent JP4966960
Kind Code:
B2
Abstract:
The induction coil unit for heating a sleeve section of a tool holder holding the shaft of a rotation tool in a receiver opening in press fit comprises two coil units, whose distance can be changed selectively through at least one slanted surface cam assembly. A magnetic flux concentrator assembly with several concentrator elements distributed in circumferential direction is associated with the coil unit adjacent to the free end of the sleeve section. The width of a pass through opening defined by the concentrator elements for the tool shaft is also changeable through a control cam, to which the concentrator elements are coupled through a slanted surface cam assembly. The two slanted surface cam assemblies are coupled amongst each other in a useful manner in order to simplify the operation of the unit.
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Inventors:
Heimer, Franz
Application Number:
JP2008503442A
Publication Date:
July 04, 2012
Filing Date:
April 03, 2006
Export Citation:
Assignee:
Franz Heimer Maschinenbauer Kage
International Classes:
C21D9/28; C21D1/42; H05B6/06; H05B6/10; H05B6/44; B23B31/117; B23P11/02
Domestic Patent References:
| JP2003534139A |
Foreign References:
| US20030209535 |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Nobuo Arakawa
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Nobuo Arakawa