Title:
IMPACT MACHINE
Document Type and Number:
WIPO Patent Application WO/1999/032266
Kind Code:
A1
Abstract:
A high-power, durable impact machine for crushing and boring, which operates with reduced noise and vibration and exhibits high crushing efficiency and high energy efficiency. In the center of an exciting coil (4) to which pulsating voltage is applied, a giant magnetostrictive material (1) is placed in contact with a rod (12) on one end thereof and in contact with a plate (13) for receiving reaction force on the other end. A power supply (6) is provided for repeating the application of pulsating voltage to the exciting coil (4).
Inventors:
WATANABE HIDESHI (JP)
Application Number:
PCT/JP1998/005659
Publication Date:
July 01, 1999
Filing Date:
December 15, 1998
Export Citation:
Assignee:
FURUKAWA CO LTD (JP)
WATANABE HIDESHI (JP)
WATANABE HIDESHI (JP)
International Classes:
B25D11/06; B25D13/00; E21B1/22; E21B1/00; (IPC1-7): B25D13/00; E21C3/06
Foreign References:
| JPS6399182A | 1988-04-30 | |||
| JPH01272500A | 1989-10-31 | |||
| JPH06297303A | 1994-10-25 |
Other References:
See also references of EP 1070569A4
Attorney, Agent or Firm:
Mori, Tetsuya (8th floor 7, Kanda-Kajicho 3-chome Chiyoda-ku Tokyo, JP)
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