Bridge seat construction

专利名称：Bridge seat construction发明人：YONG-KUK CHOI申请号：AU4121601申请日：20010303公开号：AU4121601A公开日：20010912

摘要：The object of this invention is to provide a bridge seat. This bridge seat includesan upper plate (1), with two guide rails (2, 2a) longitudinally mounted on the lowersurface of the upper plate along opposite side edges. A middle plate (3) movablyengages with the two guide rails at its opposite side edges such that a gap is leftbetween each side edge of the middle plate and an associated guide rail. This middleplate (3) has a longitudinal boss (5) on its lower surface, with an axial hole (4) formed inthe boss (5). A lower plate (6) has a longitudinal groove (7) of a semicircular cross-sectionon its upper surface, and rotatably seats the boss (5) of the middle plate (3) in the groove(7). Two end plates (8, 9) cover the opposite ends of the upper, middle and lower plates.The end plates (8, 9) each have a shaft hole (8a, 9a) at a position corresponding to thelongitudinal hole (4) of the boss (5). A shaft (11) is set in the aligned holes (4, 8a, 9a) ofthe boss and two end plates.

申请人：YONG-KUK CHOI

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