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Title:
DEVICE FOR CONFIRMING LEFT POSITION OF DRAIN MATERIAL IN DRAIN METHOD
Document Type and Number:
Japanese Patent JP3928857
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide high durability and detecting capacity of high accuracy without causing severance of element wire of a cable and severance of the cable by preventing a transmission means for power supply and detection signals from receiving mechanical load such as friction, drawing or bending.
SOLUTION: This device for confirming the left position of a drain material in a drain method has a primary power supply 14 on the placing machine B side; a secondary power supply 5 provided on the mandrel A side to supply power to a detecting means 2; and non-contact power supply devices 3, 4 for supplying power in a non-contact manner from the primary power supply 14 to the secondary power supply 5. The device further has non-contact transmission means 6-10 for transmitting the detection signals transmitted from the detecting means 2; an image processor 11 for carrying out image processing of the signals transmitted by the non-contact transmission means 6-10; and an arithmetic unit 12 for carrying out arithmetic processing of data image-processed by the image processor 11, to confirm the left position of the drain material D.


Inventors:
Masayuki Miura
Nakagawa Mikio
Sugiyama Masahide
Akimoto Akira
Hiroshi Ishihara
Michihiro Kimura
Application Number:
JP2002285119A
Publication Date:
June 13, 2007
Filing Date:
September 30, 2002
Export Citation:
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Assignee:
Kashima Construction Co., Ltd.
Fudo Tetra Co., Ltd.
Nishiki Castle Defense Co., Ltd.
International Classes:
E02D3/10; E02D1/08; (IPC1-7): E02D3/10; E02D1/08
Domestic Patent References:
JP6349006B2
Attorney, Agent or Firm:
Toshitada Takahashi
Toshikuni Takahashi