The geometry of the Sarai eaves and control the phenomenon is Sarai deflection

摘要

The upper part of the upper part of the upper part of the ladies is formed in a flat shape so that the upper surface of the upper part of the ladies is partially recessed, And an auxiliary latching protrusion formed to have the same inclination as that of the auxiliary latching recessed portion and covering the auxiliary latching recessed portion at the top end of the latching protrusion, A fixed base fixing groove for allowing insertion and fixing is formed,And a fastening protrusion is formed on the lower part of the seat so as to come into close contact with the lower part of the fastening recessed part at the rear end of the seat fastener, And a cover for covering the upper part of the flat top is formed to be in close contact with the upper surface of the flat top, and an iron spike is press-fitted on the upper side of the flat,When the load of the double layer is applied to the yarn and the yarn is urged to tilt forward, the upper part of the hook projection having a slope inclined further inward than the turning radius of the yarn rotating in the counterclockwise direction about the tip end So that the inner surface of the engaging recessed portion having the same inclination as the engaging protrusion can be supported by the surface so as to be prevented from tilting.