APPARATUS HAVING FUNCTION OF DETECTING EXISTING POSITION OF METALLIC MEMBER

Title:

APPARATUS HAVING FUNCTION OF DETECTING EXISTING POSITION OF METALLIC MEMBER

Document Type and Number:

WIPO Patent Application WO/1992/005847

Kind Code:

A1

Abstract:

The apparatus of the invention includes folded transmission lines (22) for sending a current for generating a magnetic field, and folded reception lines (26) disposed at a position at which they can electromagnetically couple with the transmission lines (22), for detecting the change of the magnetic flux due to the approach of a metal. The transmission lines (22) are disposed on a first plane, and the reception lines (26) are disposed on a second plane in parallel with the first plane in such a manner that the transmission lines are perpendicular to the reception lines in order to constitute a detection matrix (20). The detection matrix (20) is disposed on a panel surface, along which a metallic member to be detected moves, in such a manner as to oppose each other while keeping at least a space through which the metallic member can pass. Transmission means (50) and reception means (40) are connected to the detection matrices (20) so as to detect the existing position of the metallic member.

Inventors:

TAKEMOTO TAKATOSHI (JP)
KAWASHIMA KAZUNARI (JP)
HANDA SHIGERU (JP)

Application Number:

PCT/JP1991/001353

Publication Date:

April 16, 1992

Filing Date:

October 04, 1991

Export Citation:

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Assignee:

ACE DENKEN KK (JP)

International Classes:

A63F7/02; G07F17/34; A63F3/02; (IPC1-7): A63F7/02

Foreign References:

JPS60114283A	1985-06-20
JPS5119379B2	1976-06-17
JPH01201287A	1989-08-14
JPS61226076A	1986-10-07
JPS5374937A	1978-07-03

Other References: