PLACEMENT/NON-PLACEMENT DETECTION DEVICE OF PLATE MATERIAL, CARRYING DEVICE OF THE PLATE MATERIAL, AND PLACEMENT/NON-PLACEMENT DETECTION METHOD OF THE PLATE MATERIAL

Japanese Patent JP2014050856

A

To provide a placement/non-placement detection device of a plate material capable of detecting placement/non-placement of the plate material by using an induction-type proximity sensor, even when the plate material is made of resin.

A placement detection device comprises an induction-type proximity sensor (8), a support part (7) for supporting the proximity sensor (8) and a leg part (7c) provided to the support part (7) and projecting in the detection direction with respect to a detection surface (8a) of the proximity sensor (8). The leg part (7c) is formed so that the detection surface (8a) and the plate material (W) become substantially parallel with each other when the plate material (W) is made to abut on a tip part (7c2a) and a distance H1 up to the tip part (7c2a) of the leg part (7c) from the detection surface (8a) in the direction of a detection reference axis (8Z) of the proximity sensor (8) becomes H1<H2 min to a minimum value H2 min of a detectable distance H2 of the proximity sensor (8).

ICHIKAWA TAKAHIRO
OYAMA KATSUMI

JP2012196007A

March 20, 2014

September 06, 2012

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AMADA CO LTD

B21D43/00; B21D43/24

JPH0351933U	1991-05-21
JPH0542254U	1993-06-08
JPH0642049U	1994-06-03
JPH0351933U	1991-05-21
JPH0542254U	1993-06-08

Hidekazu Miyoshi
Iwa Saki Kokuni
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu

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