| 摘要 |
PURPOSE:To reduce the storing cost of a printing screen without impairing its function as a printing screen form frame by inetgrally assembling a lower form frame body with a printing screen strechably installed to its underside and an upper form frame body so that the lower frame can be reinforced by the upper one. CONSTITUTION:A lower frame body 40 and an upper frame body 50 are composed of hollow members 41, 51 and the underside 42 of the lower frame body 40 is tapered and a screen 3 is strechably installed thereto. Its internal surface 43 is perpendicular to the screen 3 and its underside 44 is provided with a flange part 46 protruded outside the outer surface 45 so that it encircles the lower frame body 40. The underside 52 of the upper frame body 50 is also provided with a flange portion 56, and the upper surface of the upper frame body 50 is a flat surface for guiding a squeegee which is perpendicular to its internal surface 53. The lower frame body 40 and the upper frame body 50 are integrally assembled by such an arrangement wherein bolts 7 provided in a fastening frame body 60 are inserted into holes 47, 57 of flange parts 46, 56 and fastened with nuts 8 and by this arrangment, an internal circumferential surface having a desired height is formed to prevent printing ink to be squeezed from flowing outside and penetrating into the joint part of the assembled frame bodies. |
