To simultaneously mask an aperture by closing the aperture with a masking member fitting into the aperture of a special shaped tube, etc., and engaging an engaging member with the inside wall of the aperture of the special shaped tube by the projection thereof to a lateral side.
At the time of hoisting the special shaped tube, etc., by a coating jig 1, the masking member 3 is first pressed into the aperture of the special shaped tube. When a cylindrical part 2 is further pushed downward, the cylindrical part 2 moves downward against a coil spring 6 and, therefore, the spiral surface 15a of an upper spiral member 15 comes into contact with the spiral surface 10a of a lower spiral member 10 and the upper spiral member 15 is rotated around its axis. As a result, a connecting member 25 rotates around a shaft 27 and the engaging member 35 projects in the radial direction of the cylindrical part 2. When the force to downwardly press the cylindrical part 2 is released, the cylindrical part 2 moves upward and is fixed to an upper home position while the cylindrical part rotates further along the spiral surface 15a. A hanger 40 is hooked in this state to a hook, etc., and is hoisted and the external surface coating of the special shaped tube is carried out.
| JPH09141578 | MASKING DEVICE |
| JP2015020148 | TOOL FOR PREVENTING PAINT SPLASH |
DEGUCHI TAKAAKI
SAITO MASAHIKO
MICHIURA YOSHISADA
NAKAMURA NORIO
HASHIMOTO YUJI
SHIBATA DAISUKE
NIPPON PAINT CO LTD
KOOTEMU KK
Next Patent: METHOD AND DEVICE FOR APPLYING COATING AGENT TO MOVING SUBSTRATE