| 摘要 |
PURPOSE:To prevent a slide shaft from being bent, while retaining the stiffness of a frame, by a construction wherein one end of a slide shaft is fixed to a frame on one side through an end face thereof, and the other end is fixed to a frame on the other side through a spring member. CONSTITUTION:Each of the slide shafts 4 is inserted between the frames 1, 2 in the direction of an arrow (a), and one end thereof is fixed to the frame 1 by a fixing screw 7. In this case, a printing mechanism part is simultaneously fitted. Next, A tension support plate 9 formed from a spring material as a spring member with convex-shape, which has two holes for screwing the slide shafts 4 and at least one hole for fitting it to the frame 2, is fastened to the frame 2 by a fixing screw 12. Then, the slide shafts 4 are fixed in the holes of the plate 9 by fixing screws 10, 11, which are sufficiently tightened. Accordingly, since tensile forces are applied to the slide shafts 4 in the longitudinal direction thereof, the shafts 4 can be fixed in conformity to the spacing between the frames 1, 2, irrespective of scattering of the dimensions of the shafts 4. |
