shippasami tsugi 尻挟継

Also called shiribasami tsugi 尻挟継 or obasami tsugi 尾鋏継. A blind, stubbed, housed, rabbeted, oblique, scarf joint. A type of *kanawa tsugi 金輪継, a mortised, rabbeted, oblique, spliced joint. The shippasami joint has a T-shaped tenon and mortise and the two members to be joined are slipped in from the side. A pin komisen 込栓 (see *sen 栓) is inserted into a 15 mm square hole at the center of the joint to hold it securely. The tenon and mortise are not visible from the sides of the joint but a fine, straight line is discernible. This is the chief difference between the shippasami tsugi and the kanawa tsugi joint. This joint is used to connect beams and foundation footings.