Toyota Jidosha Kabushiki Kaisha

Ransburg Industrial Finishing K.k.

Harmonic Drive Systems Inc.

Youichi Hanai

Michio Mitsui

Hisanori Nakamura

Masahito Sakakibara

Toshio Hosoda

Kiyoto Kobayashi

Masatoshi Iwase

Takeshi Ichikawa

Yoshinori Aida

Hideki Saitou

Hideki Saito

Provided is an electrostatic coating apparatus capable of insulating an electric motor electrically from a member, to which an electrostatic high voltage is applied, and reducing the size and weight of the electrostatic coating apparatus. This electrostatic coating apparatus comprises a rotary atomizing head, to which high voltage is electrostatically applied, an electrostatically grounded AC servomotor, and a spindle and a fixed insulating member for insulating the AC servomotor electrically from the rotary atomizing head and a speed-increasing device to be set at the same potential as that of the former. The spindle and the fixed insulating member have insulation distance enlarging portions and of the mode, in which the creepage insulation distances from the speed-increasing device to the AC servomotor are enlarged.

Electrostatic coating apparatus with insulation enlarging portions

The stain preventing cover is formed from a composite sheethaving a three layer structure as a raw material which is produced by laminating a first sheet materialhaving a low dielectric constant and having insulation performance, a second sheet materialhaving a dielectric constant higher than that of the first sheet materialor having semiconductivity and a third sheet materialhaving a dielectric constant lower than that of the second sheet materialand having insulation performance, in which an end of the second sheet materialis positioned together with an end of the first and third sheet materialsandadjacent to a electrostatic high voltage partof a coating machine and another end thereof is positioned distant from an earth partof the coating machine to be electrically insulated. The influence of the disturbance of the electric potential distribution on the surface of a coating machine main bodyis alleviated by the first and second sheet materialsandto cause the electric potential distribution on the surface of the third sheet materialto be homogeneous to thereby preventing the attaching of atomized coating particles to the surface.

Stain preventing cover for coating machine

Growing community of inventors

Obu, Japan

Youichi Hanai