Trinity Industrial Corporation

Toyota Jidosha Kabushiki Kaisha

Takatoshi Okuta

Shinji Tani

Kota Harada

Takao Ueno

Akira Numasato

Yuki Murai

Takahito Kondo

Atsuo Nabeshima

Katsuhiro Ishikawa

Touichi Watanabe

Michitaka Moritani

Akira Shoji

Masaharu Matushita

Tomoyasu Ito

Ken Maeda

A rotary atomization head is provided, which prevents discharged threads of a coating material from making contact with each other and from being unified. A rotary headincludes: a diffusion surfaceto diffuse the coating material toward an outer edge partby centrifugal force; and a plurality of groovesformed on the outer edge part. The plurality of groovesextends in a radial direction. The adjacent grooveshave different depths. The grooveshave the same width.

Rotary atomization head and coating device

A coating device is equipped with a rotary head, a drive unit, and an electric power supply unit. The rotary head is configured to be supplied with a coating material. The rotary head includes a diffusion surface that is configured such that the coating material is diffused toward an outer edge portion of the diffusion surface by a centrifugal force, and a plurality of groove portions that are included in the outer edge portion. The rotary head is configured to discharge a threadlike coating material from the groove portions. Also, the coating device is configured such that a diameter of the threadlike coating material is set equal to or larger than 0.03 mm and equal to or smaller than 0.1 mm and that the threadlike coating material is electrostatically atomized.

Coating device

An electrostatic coating facility for an electroconductive coating material comprising a coating machine disposed in a coating zone while being grounded to the earth, an insulated conveyer disposed in the coating zone for conveying an object to be coated in an electrically insulated state and applying a high voltage to the object, an entering conveyer disposed for carrying the object into the coating zone, a delivery conveyer for carrying the coated object out of the coating zone, and a relay transfer device interposed between the insulated conveyer 1 and the entering conveyer or the delivery conveyer for transferring the object in an electrically insulated state while keeping a required insulation distance between each of them. Aqueous coating material free from public pollution can be used with no troubles for taking insulative measures on the side of the coating machine and without worry of spark discharge.

Electrostatic coating facility for electroconductive coating material

Growing community of inventors

Toyota, Japan

Takatoshi Okuta