| 摘要 |
PCT No. PCT/GB96/01722 Sec. 371 Date Jun. 1, 1998 Sec. 102(e) Date Jun. 1, 1998 PCT Filed Jul. 18, 1996 PCT Pub. No. WO97/03833 PCT Pub. Date Feb. 6, 1997A support and tensioning frame for a stencil to enable solderi paste to be applied to printed circuit boards and other electronic substrates comprising a support frame having four side members with at least two opposing side members having a stencil support surface which the stencil abuts and over which the stencil is flexed by two displaceable mounting bars disposed within opposing side members. The mounting bars are engaged with the stencil by a plurality of projections extending from a terminal edge of a mounting plate comprising each mounting bar which are sized for receipt by a plurality of apertures disposed along at least two side edges of the stencil. Each mounting bar is biased in an outwardly position by a plurality of compression springs disposed along each side member. Mounting bars are simultaneously displaced for engagement and disengagement of the stencil by an inflatable tubular member disposed within each side member and extending through all four side members of the support frame when the tubular member is inflated with air.
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