To accurately and easily measure the sending quantity of a wall decorative material with a single permanent magnet regardless of the peripheral length of a metering roll.
The wall paper starching machine for continuously applying a paste on the back surface of a wall decorative material by sending the sheet like wall decorative material drawn in from the rear side face part of the starching machine main body to the front face side by plural rolls while measuring the sending length of the wall decorative material based on the number of revolution of the metering roll 10 is provided with a rotor 42 for shielding the magnetization from the single permanent magnet intermittently by the integer number of times per one rotation of the roll 10 in accordance with the peripheral length of the roll, a switching means 43 for carrying out the circuit closing or circuit opening operation by being induced by the magnetization intermittently shielded by the rotor 42, an electromagnetic coil 45, both end of which is short circuited or opened by the closing or opening circuit of switching means 43, and a length measuring circuit means (52, 53, 54, 55) mechanically separated not to be in contact with and electrically electromagnetic induction-coupling with the electromagnetic coil 45 to excite the electromagnetic coil 45 with the AC signal and for measuring the sending length of the wall decorative material base on the change of amplitude of the AC signal corresponding to the short circuit or the releasing of electromagnetic coil 45.
MIYAKI KANJI
SHINKAWA TOSHIKI
MAEKAWA KENICHI
| JPH11295330A | 1999-10-29 | |||
| JPH10206446A | 1998-08-07 | |||
| JPH0737368U | 1995-07-11 | |||
| JPH0970563A | 1997-03-18 | |||
| JPS519859A | 1976-01-26 | |||
| JPS6416918A | 1989-01-20 |
Next Patent: METHOD AND DEVICE FOR APPLYING ADHESIVE