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    • 1. 发明授权
    • Method of masking a workpiece for painting
    • 遮蔽工件进行涂装的方法
    • US4313970A
    • 1982-02-02
    • US165616
    • 1980-07-03
    • Wallace R. JonesJohn F. HaasPaul A. KriegerDavid E. Frappier
    • Wallace R. JonesJohn F. HaasPaul A. KriegerDavid E. Frappier
    • B05B15/04B05D1/32B05D3/06
    • B05D1/32B05B15/0456
    • A method of masking a workpiece at a demarcation zone to facilitate precise spray painting of a workpiece first area on one side of the zone. The method includes providing a mask which has an adhesive backing on one face thereof and a protective liner removably secured to the adhesive backing. The liner is cut or severed so that the resultant sever line has the same conformation therealong as that desired for the demarcation zone. That section of liner associated with the portion of the mask to be affixed to a workpiece second area on the opposite side of the demarcation zone from the workpiece first area is removed from the mask. Thereafter, the mask may be affixed to have the liner sever line precisely aligned with the demarcation zone. Pressure is exerted against the mask at a thin pressure zone coextensive with the demarcation zone to automatically lift that portion of the mask which overlaps the workpiece first portion at and along the demarcation zone to generally form an acute angle therewith. The workpiece first area may then be spray painted from a direction generally normal to the workpiece plane at least adjacent the demarcation zone. The pocket-like area of the mask causes the paint to be feathered toward the demarcation zone and thereby enhance blending of the painted areas precisely along that zone. A paint drape may also be accommodated by and affixed to the mask to protect a larger portion of the workpiece second portion. An alternative construction for the mask employs a thin vinyl sheet material with heat being subsequently applied to effect lifting.
    • 在分界区掩蔽工件的方法,以便于区域一侧上的工件第一区域的精确喷涂。 该方法包括提供在其一个表面上具有粘合剂背衬的掩模和可拆卸地固定到粘合剂背衬的保护衬垫。 衬里被切割或切断,使得所得到的切割线具有与分界区所需的相同的构象。 与掩模部分相关联的衬垫部分被从掩模移除,以将其固定到与工件第一区域在分界区的相对侧上的工件第二区域。 此后,可以将掩模固定以使衬管切割线精确地与分界区对准。 压力在与分界区共同延伸的薄压力区域施加到面罩上,以自动提起与边界处和沿着分界区重叠工件第一部分的掩模部分,以与其大致形成锐角。 然后可以至少在分界区附近从大体上垂直于工件平面的方向喷涂工件第一区域。 面罩的口袋状区域使得油漆朝向分界区羽化,从而增强了油漆区域沿着该区域的精确混合。 油漆罩也可以由掩模容纳并固定到掩模上,以保护工件第二部分的较大部分。 掩模的替代结构采用随后施加热量的薄乙烯基片材来实现提升。